Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n
\u0110\u1ed1i v\u1edbi ch\u01b0\u01a1ng tr\u00ecnh v\u1eadt l\u00fd c\u1ea5p trung h\u1ecdc c\u01a1 s\u1edf, vi\u1ec7c hi\u1ec3u bi\u1ebft v\u00e0 v\u1eadn d\u1ee5ng \u0111\u01b0\u1ee3c l\u00fd thuy\u1ebft r\u1ea5t quan tr\u1ecdng. Ch\u00fang t\u00f4i mu\u1ed1n gi\u1edbi thi\u1ec7u v\u1edbi c\u00e1c em ki\u1ebfn th\u1ee9c v\u1ec1 ch\u1ea5t d\u1eabn \u0111i\u1ec7n v\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n. \u0110\u00e2y l\u00e0 l\u00fd thuy\u1ebft n\u1ec1n t\u1ea3ng v\u00f4 c\u00f9ng quan tr\u1ecdng, gi\u00fap c\u00e1c em hi\u1ec3u r\u00f5 v\u1ec1 b\u1ea3n ch\u1ea5t d\u00f2ng \u0111i\u1ec7n h\u01a1n. Sau n\u00e0y, n\u1ebfu \u00e1p d\u1ee5ng nh\u1eefng c\u00f4ng th\u1ee9c li\u00ean quan, c\u00e1c em \u0111\u00e3 c\u00f3 c\u01a1 b\u1ea3n \u0111\u1ec3 hi\u1ec3u r\u00f5. Ngo\u00e0i ra, ch\u00fang t\u00f4i s\u1ebd \u0111\u01b0a \u0111\u1ebfn t\u00e0i li\u1ec7u v\u1ec1 b\u1ea3n ch\u1ea5t d\u00f2ng \u0111i\u1ec7n trong kim lo\u1ea1i. C\u00f9ng tham kh\u1ea3o ngay b\u1ea1n nh\u00e9!<\/p>\n\n\n\n
Ch\u1ea5t d\u1eabn \u0111i\u1ec7n l\u00e0 g\u00ec<\/p>\n\n\n\n
\u0110\u1ecbnh ngh\u0129a v\u1ec1 ch\u1ea5t d\u1eabn \u0111i\u1ec7n v\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n theo v\u1eadt l\u00fd 7<\/p>\n\n\n\n
\u0110\u1ed1i v\u1edbi c\u00e1c em h\u1ecdc sinh<\/a> l\u1edbp 7, nh\u1eefng th\u00f4ng tin ch\u1ea5t d\u1eabn \u0111i\u1ec7n v\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n d\u00f2ng \u0111i\u1ec7n trong kim lo\u1ea1i kh\u00f4ng qu\u00e1 ph\u1ee9c t\u1ea1p. Ch\u1ea5t d\u1eabn \u0111i\u1ec7n l\u00e0 ch\u1ea5t cho ph\u00e9p d\u00f2ng \u0111i\u1ec7n \u0111i qua. Khi ch\u00fang \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 l\u00e0m c\u00e1c v\u1eadt ho\u1eb7c c\u00e1c b\u1ed9 ph\u1eadn d\u1eabn \u0111i\u1ec7n, ch\u1ea5t d\u1eabn \u0111i\u1ec7n s\u1ebd \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 v\u1eadt li\u1ec7u d\u1eabn \u0111i\u1ec7n.<\/p>\n\n\n\n V\u00ed d\u1ee5 v\u1ec1 ch\u1ea5t d\u1eabn \u0111i\u1ec7n. B\u1ea1c, \u0111\u1ed3ng, v\u00e0ng, s\u1eaft, nh\u00f4m\u2026 l\u00e0 nh\u1eefng ch\u1ea5t d\u1eabn \u0111i\u1ec7n r\u1ea5t t\u1ed1t<\/p>\n\n\n\n Ch\u1ea5t c\u00e1ch \u0111i\u1ec7n l\u00e0 ch\u1ea5t kh\u00f4ng chi ph\u00e9p d\u00f2ng \u0111i\u1ec7n \u0111i qua. Ch\u1ea5t c\u00e1ch \u0111i\u1ec7n s\u1ebd \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 l\u00e0m c\u00e1c v\u1eadt ho\u1eb7c b\u1ed9 ph\u1eadn c\u00e1ch \u0111i\u1ec7n. Nh\u01b0 v\u1eady ch\u1ea5t c\u00e1ch \u0111i\u1ec7n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u1ed9 ph\u1eadn c\u00e1ch \u0111i\u1ec7n.<\/p>\n\n\n\n V\u00ed d\u1ee5 v\u1ec1 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n. S\u1ee9, th\u1ee7y tinh, cao su, nh\u1ef1a, ch\u1ea5t d\u1ebbo\u2026 l\u00e0 nh\u1eefng ch\u1ea5t c\u00e1ch \u0111i\u1ec7n t\u1ed1t.<\/p>\n\n\n\n \u0110\u1ecbnh ngh\u0129a chi ti\u1ebft v\u1ec1 ch\u1ea5t d\u1eabn \u0111i\u1ec7n, ch\u1ea5t c\u00e1ch \u0111i\u1ec7n<\/p>\n\n\n\n \u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi mu\u1ed1n t\u00ecm hi\u1ec3u k\u1ef9 h\u01a1n, ch\u00fang t\u00f4i \u0111\u01b0a \u0111\u1ebfn nh\u1eefng th\u00f4ng tin n\u00e0y v\u1ec1 ch\u1ea5t d\u1eabn \u0111i\u1ec7n v\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n.<\/p>\n\n\n\n Ch\u1ea5t c\u00e1ch \u0111i\u1ec7n<\/p>\n\n\n\n Ch\u1ea5t c\u00e1ch \u0111i\u1ec7n l\u00e0 ch\u1ea5t d\u1eabn \u0111i\u1ec7n k\u00e9m. Ch\u00fang c\u00f3 \u0111i\u1ec7n tr\u1edf su\u1ea5t r\u1ea5t l\u1edbn. Nhi\u1ec1u ch\u1ea5t c\u00e1ch \u0111i\u1ec7n ch\u00ednh l\u00e0 c\u00e1c ch\u1ea5t \u0111i\u1ec7n m\u00f4i. Th\u1ebf nh\u01b0ng, tr\u00ean th\u1ef1c t\u1ebf, c\u0169ng c\u00f3 nh\u1eefng m\u00f4i tr\u01b0\u1eddng c\u00e1ch \u0111i\u1ec7n kh\u00f4ng ph\u1ea3i l\u00e0 ch\u1ea5t \u0111i\u1ec7n m\u00f4i. C\u00f3 th\u1ec3 k\u1ec3 \u0111\u1ebfn ch\u00e2n kh\u00f4ng l\u00e0 m\u1ed9t v\u00ed d\u1ee5 c\u1ee5 th\u1ec3.<\/p>\n\n\n\n C\u00e1c v\u1eadt li\u1ec7u th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m ch\u1ea5t c\u00e1ch \u0111i\u1ec7n c\u00f3 th\u1ec3 k\u1ec3 \u0111\u1ebfn g\u1ed7, nh\u1ef1a, v\u1ecf b\u1ecdc d\u00e2y \u0111i\u1ec7n. \u0110\u00e2y \u0111\u1ec1u l\u00e0 nh\u1eefng v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n r\u1eafn. Ngo\u00e0i ra c\u00f2n c\u00f3 d\u1ea7u m\u00e1y bi\u1ebfn \u00e1p, \u0111\u00e2y l\u00e0 v\u1eadt li\u1ec7u c\u00e1c \u0111i\u1ec7n l\u1ecfng. Kh\u00f4ng ch\u1ec9 c\u00f3 v\u1eady c\u00f2n c\u00f3 kh\u00f4ng kh\u00ed \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t d\u1ea1ng c\u00e1ch \u0111i\u1ec7n kh\u00ed.<\/p>\n\n\n\n Nh\u1eefng v\u1eadt li\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u trong \u0111\u1eddi s\u1ed1ng. Ch\u00fang c\u00f3 t\u00e1c d\u1ee5ng ng\u0103n ch\u1eb7n s\u1ef1 ti\u1ebfp x\u00fac c\u1ee7a d\u00f2ng \u0111i\u1ec7n v\u1edbi nh\u1eefng d\u00f2ng kh\u00e1c. Ngo\u00e0i ra c\u0169ng l\u00e0 c\u00e1ch \u0111\u1ec3 ng\u0103n ch\u1eb7n ng\u01b0\u1eddi ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi d\u00f2ng \u0111i\u1ec7n.<\/p>\n\n\n\n \u0110\u1eb7c tr\u01b0ng c\u1ee7a ch\u1ea5t c\u00e1ch \u0111i\u1ec7n l\u00e0 g\u00ec?<\/p>\n\n\n\n Nh\u1eafc \u0111\u1ebfn \u0111\u1eb7c tr\u01b0ng c\u1ee7a ch\u1ea5t c\u00e1ch \u0111i\u1ec7n, nhi\u1ec1u ng\u01b0\u1eddi cho hay ch\u00fang c\u00f3 nhi\u1ec1u \u0111\u1eb7c tr\u01b0ng. Nh\u1eafc \u0111\u1ebfn ch\u1ea5t d\u1eabn \u0111i\u1ec7n v\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n l\u00e0 ph\u1ea3i nh\u1eafc \u0111\u1ebfn nhi\u1ec1u y\u1ebfu t\u1ed1. V\u00ed d\u1ee5 nh\u01b0 \u0111i\u1ec7n tr\u1edf su\u1ea5t, t\u1ed5n hao \u0111i\u1ec7n m\u00f4i, \u0111\u1ed9 b\u1ec1n \u0111i\u1ec7n m\u00f4i, \u0111\u1ed9 th\u1ea9m \u0111i\u1ec7n m\u00f4i\u2026 \u0110\u00e2y l\u00e0 nh\u1eefng th\u1ee9 nhi\u1ec1u k\u1ef9 s\u01b0 quan t\u00e2m khi ch\u1ebf t\u1ea1o ra c\u00e1c thi\u1ebft b\u1ecb s\u1eed d\u1ee5ng \u0111\u1ec3 c\u00e1ch \u0111i\u1ec7n.<\/p>\n\n\n\n M\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u00e1nh gi\u00e1 v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n ch\u00ednh l\u00e0 c\u01b0\u1eddng \u0111\u1ed9 \u0111i\u1ec7n tr\u01b0\u1eddng \u0111\u00e1nh th\u1ee7ng. Khi c\u01b0\u1eddng \u0111\u1ed9 \u0111i\u1ec7n tr\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1eb7t l\u00ean v\u1eadt li\u1ec7u v\u01b0\u1ee3t qua gi\u00e1 tr\u1ecb cho ph\u00e9p. Ch\u00fang s\u1ebd ph\u00e1 h\u1ee7y v\u1eadt li\u1ec7u b\u1edfi xu\u1ea5t hi\u1ec7n s\u1ef1 ph\u00f3ng \u0111i\u1ec7n. \u0110i\u1ec1u n\u00e0y s\u1ebd l\u00e0m cho v\u1eadt li\u1ec7u m\u1ea5t \u0111i nh\u1eefng \u0111\u1eb7c t\u00ednh c\u00e1ch \u0111i\u1ec7n v\u1ed1n c\u00f3.<\/p>\n\n\n\n Th\u00f4ng tin ch\u1ea5t d\u1eabn \u0111i\u1ec7n v\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n<\/p>\n\n\n\n Ngo\u00e0i ra, c\u01b0\u1eddng \u0111\u1ed9 \u0111i\u1ec7n tr\u01b0\u1eddng \u0111\u00e1nh th\u1ee7ng n\u00e0y c\u0169ng l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 l\u1ef1a ch\u1ecdn c\u00e1ch \u0111i\u1ec7n cho v\u1eadt li\u1ec7u s\u1eed d\u1ee5ng. Nhi\u1ec1u nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ec9 ra \u0111i\u1ec1u n\u00e0y. Khi ch\u1ebf t\u1ea1o v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n, vi\u1ec7c ch\u1ecdn v\u1eadt li\u1ec7u c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111i\u1ec7n tr\u01b0\u1eddng cao s\u1ebd \u0111\u01b0\u1ee3c ch\u00fa \u00fd. L\u00fd do l\u00e0 b\u1edfi ch\u00fang cho ph\u00e9p gi\u1ea3m \u0111i nh\u1eefng k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n.<\/p>\n\n\n\n Ch\u1ea5t d\u1eabn \u0111i\u1ec7n<\/p>\n\n\n\n Ch\u1ea5t d\u1eabn \u0111i\u1ec7n l\u00e0 nh\u1eefng ch\u1ea5t c\u00e1ch \u0111i\u1ec7n k\u00e9m, c\u00f3 kh\u1ea3 n\u0103ng d\u1eabn \u0111i\u1ec7n t\u1ed1t. Trong v\u1eadt l\u00fd v\u00e0 k\u1ef9 thu\u1eadt s\u1eed d\u1ee5ng \u0111i\u1ec7n, c\u00f3 th\u1ec3 th\u1ea5y ch\u1ea5t d\u1eabn \u0111i\u1ec7n ch\u00ednh l\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng, ho\u1eb7c v\u1eadt li\u1ec7u cho ph\u00e9p d\u00f2ng \u0111i\u1ec7n ch\u1ea3y qua. Ch\u00fang c\u00f3 \u0111i\u1ec7n tr\u1edf su\u1ea5t r\u1ea5t nh\u1ecf. Trong nh\u1eefng kim lo\u1ea1i d\u1eabn \u0111i\u1ec7n t\u1ed1t (v\u00ed d\u1ee5, \u0111\u1ed3ng, nh\u00f4m), c\u00e1c h\u1ea1t t\u00edch \u0111i\u1ec7n chuy\u1ec3n \u0111\u1ed9ng ch\u00ednh l\u00e0 c\u00e1c electron. \u0110i\u1ec7n t\u00edch d\u01b0\u01a1ng c\u0169ng c\u00f3 th\u1ec3 di \u0111\u1ed9ng, v\u00ed d\u1ee5 nh\u01b0 ch\u1ea5t \u0111i\u1ec7n li c\u1ef1c d\u01b0\u01a1ng t\u1eeb m\u1ed9t pin. Ngo\u00e0i ra c\u00f3 th\u1ec3 k\u1ec3 \u0111\u1ebfn c\u00e1c prton di \u0111\u1ed9ng t\u1eeb \u0111i\u1ec7n li proton c\u1ee7a t\u1ebf b\u00e0o nhi\u00ean li\u1ec7u.<\/p>\n\n\n\n Xem th\u00eam v\u1ec1 c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n<\/p><\/blockquote>\n\n\n\n D\u00f2ng \u0111i\u1ec7n trong kim lo\u1ea1i l\u00e0 g\u00ec?<\/p>\n\n\n\n B\u1ea3n ch\u1ea5t c\u1ee7a d\u00f2ng \u0111i\u1ec7n trong kim lo\u1ea1i ch\u00ednh l\u00e0 d\u00f2ng c\u00e1c electron t\u1ef1 do d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng.<\/p>\n\n\n\n Ngo\u00e0i ki\u1ebfn th\u1ee9c v\u1ec1 ch\u1ea5t d\u1eabn \u0111i\u1ec7n v\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n, nhi\u1ec1u ng\u01b0\u1eddi mu\u1ed1n bi\u1ebft v\u1ec1 d\u00f2ng \u0111i\u1ec7n trong kim lo\u1ea1i. B\u1ea3n ch\u1ea5t c\u1ee7a kim lo\u1ea1i l\u00e0 ch\u1ea5t d\u1eabn \u0111i\u1ec7n, v\u00e0 kim lo\u1ea1i \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o t\u1eeb nhi\u1ec1u nguy\u00ean t\u1eed. Nhi\u1ec1u nh\u00e0 khoa h\u1ecdc \u0111\u00e3 kh\u1eb3ng \u0111\u1ecbnh r\u1eb1ng: B\u00ean trong kim lo\u1ea1i c\u00f3 ch\u1ee9a c\u00e1c electron. Khi ch\u00fang tho\u00e1t ra kh\u1ecfi nguy\u00ean t\u1eed, ch\u00fang s\u1ebd chuy\u1ec3n \u0111\u1ed9ng t\u1ef1 do trong kim lo\u1ea1i. \u0110\u00e2y ch\u00ednh l\u00e0 c\u00e1c electron t\u1ef1 do. Ngo\u00e0i ra, ph\u1ea7n c\u00f2n l\u1ea1i s\u1ebd ch\u1ec9 dao \u0111\u1ed9ng \u1edf quanh m\u1ed9t v\u1ecb tr\u00ed c\u1ed1 \u0111\u1ecbnh.<\/p>\n\n\n\n T\u00ecm hi\u1ec3u th\u00eam v\u1ec1 ch\u1ee7 \u0111\u1ec1 s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n, d\u00f2ng \u0111i\u1ec7n trong kim lo\u1ea1i<\/p><\/blockquote>\n\n\n\n H\u01b0\u1edbng d\u1eabn m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp v\u1ec1 ch\u1ea5t d\u1eabn \u0111i\u1ec7n v\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n<\/p>\n\n\n\n D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp v\u1ec1 ch\u1ea5t d\u1eabn \u0111i\u1ec7n v\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n. B\u1ea1n h\u00e3y t\u00ecm hi\u1ec3u \u0111\u1ec3 bi\u1ebft \u0111\u01b0\u1ee3c c\u00e1ch l\u00e0m b\u00e0i v\u00e0 \u00e1p d\u1ee5ng sao cho h\u1ee3p l\u00fd nh\u00e9.<\/p>\n\n\n\n \u0110\u1ed3ng l\u00e0 ch\u1ea5t d\u1eabn \u0111i\u1ec7n r\u1ea5t t\u1ed1t<\/p>\n\n\n\n B\u00e0i t\u1eadp<\/p>\n\n\n\n C\u00e2u 1: K\u1ec3 t\u00ean ba v\u1eadt li\u1ec7u hay th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m v\u1eadt d\u1eabn \u0111i\u1ec7n. Ngo\u00e0i ra h\u00e3y k\u1ec3 th\u00eam t\u00ean c\u1ee7a ba v\u1eadt li\u1ec7u th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m v\u1eadt c\u00e1ch \u0111i\u1ec7n.<\/p>\n\n\n\n C\u00e2u 2: N\u00eau m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p c\u00f3 ch\u1ee9ng t\u1ecf r\u1eb1ng kh\u00f4ng kh\u00ed \u1edf \u0111i\u1ec1u ki\u1ec7n b\u00ecnh th\u01b0\u1eddng ch\u00ednh l\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n.<\/p>\n\n\n\n C\u00e2u 3: Trong v\u1eadt n\u00e0o d\u01b0\u1edbi \u0111\u00e2y kh\u00f4ng c\u00f3 nh\u1eefng electron t\u1ef1 do?<\/p>\n\n\n\n A M\u1ed9t \u0111o\u1ea1n d\u00e2y th\u00e9p<\/p>\n\n\n\n B M\u1ed9t \u0111o\u1ea1n d\u00e2y \u0111\u1ed3ng<\/p>\n\n\n\n C M\u1ed9t \u0111o\u1ea1n d\u00e2y nh\u1ef1a<\/p>\n\n\n\n D M\u1ed9t \u0111o\u1ea1n d\u00e2y nh\u00f4m<\/p>\n\n\n\n C\u00e2u 4: V\u1eadt n\u00e0o d\u01b0\u1edbi \u0111\u00e2y l\u00e0 v\u1eadt d\u1eabn \u0111i\u1ec7n<\/p>\n\n\n\n A Thanh th\u1ee7y tinh<\/p>\n\n\n\n B M\u1ed9t \u0111o\u1ea1n d\u00e2y nh\u1ef1a<\/p>\n\n\n\n C M\u1ed9t \u0111o\u1ea1n ru\u1ed9t b\u00fat ch\u00ec<\/p>\n\n\n\n D Thanh g\u1ed7 kh\u00f4<\/p>\n\n\n\n \u0110\u00e1p \u00e1n<\/p>\n\n\n\n C\u00e2u 1<\/p>\n\n\n\n Ba v\u1eadt c\u00f3 th\u1ec3 d\u1eabn \u0111i\u1ec7n \u0111\u01b0\u1ee3c l\u00e0: S\u1eaft, nh\u00f4m, \u0111\u1ed3ng<\/p>\n\n\n\n Ba v\u1eadt c\u00f3 th\u1ec3 c\u00e1ch \u0111i\u1ec7n \u0111\u01b0\u1ee3c l\u00e0: S\u1ee9, cao su, nh\u1ef1a.<\/p>\n\n\n\n C\u00e2u 2<\/p>\n\n\n\n V\u00ed d\u1ee5 v\u1ec1 m\u1ea1ch \u0111i\u1ec7n th\u1eafp s\u00e1ng trong b\u00f3ng \u0111\u00e8n pin. Khi m\u00e0 c\u00f4ng t\u1eafc ng\u1eaft, g\u1eefa hai ch\u1ed1t c\u00f4ng t\u1eafc l\u00e0 kh\u00f4ng kh\u00ed. Trong l\u00fac n\u00e0y \u0111\u00e8n kh\u00f4ng h\u1ec1 s\u00e1ng. Khi m\u00e0 c\u00f4ng t\u1eafc m\u1edf, hai ch\u1ed1t c\u00f4ng t\u1eafc ch\u1ea1m tr\u1ef1c ti\u1ebfp v\u00e0o nhau, \u0111\u00e8n s\u00e1ng. \u0110i\u1ec1u n\u00e0y ch\u1ee9ng t\u1ecf kh\u00f4ng khi ch\u00ednh l\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n.<\/p>\n\n\n\n Ngo\u00e0i ra, v\u00ed d\u1ee5 v\u1ec1 c\u00e1c d\u00e2y t\u1ea3i \u0111i\u1ec7n \u0111i xa. Nh\u1eefng d\u00e2y t\u1ea3i n\u00e0y kh\u00f4ng h\u1ec1 c\u00f3 v\u1ecf b\u1ecdc c\u00e1ch \u0111i\u1ec7n, v\u00e0 ch\u00fang ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi kh\u00f4ng kh\u00ed. \u0110i\u1ec1u n\u00e0y ch\u1ee9ng t\u1ecf r\u1eb1ng kh\u00f4ng khi kh\u00f4ng cho ph\u00e9p d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua.<\/p>\n\n\n\n C\u00e2u 3: \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 \u0111\u00e1p \u00e1n C: M\u1ed9t \u0111o\u1ea1n d\u00e2y nh\u1ef1a<\/p>\n\n\n\n C\u00e2u 4: \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 C: M\u1ed9t \u0111o\u1ea1n ru\u1ed9t b\u00fat ch\u00ec.<\/p>\n\n\n\n L\u00e0m sao \u0111\u1ec3 ghi nh\u1edb ki\u1ebfn th\u1ee9c v\u1ec1 ch\u1ea5t d\u1eabn \u0111i\u1ec7n v\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n?<\/p>\n\n\n\n Nh\u1eefng ki\u1ebfn th\u1ee9c v\u1ec1 ch\u1ea5t d\u1eabn \u0111i\u1ec7n v\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n n\u00f3i \u0111\u01a1n gi\u1ea3n th\u00ec c\u0169ng kh\u00f4ng ph\u1ea3i. Th\u1ebf nh\u01b0ng ch\u1eafc ch\u1eafn r\u1eb1ng \u0111\u00e2y l\u00e0 nh\u1eefng ki\u1ebfn th\u1ee9c kh\u00f4ng h\u1ec1 \u0111\u00e1nh \u0111\u1ed1 h\u1ecdc sinh<\/a>. Ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ea5t nhi\u1ec1u v\u00e0o th\u1ef1c ti\u1ec5n, gi\u00fap h\u1ecdc sinh<\/a> hi\u1ec3u \u0111\u01b0\u1ee3c b\u1ea3n ch\u1ea5t v\u1ea5n \u0111\u1ec1. Th\u1ebf n\u00ean, b\u1ea5t c\u1ee9 em h\u1ecdc sinh<\/a> n\u00e0o c\u0169ng n\u00ean bi\u1ebft r\u00f5 v\u00e0 n\u1eafm v\u1eefng \u0111\u01b0\u1ee3c nh\u1eefng ki\u1ebfn th\u1ee9c n\u00e0y.<\/p>\n\n\n\n Ph\u01b0\u01a1ng ph\u00e1p ghi nh\u1edb ki\u1ebfn th\u1ee9c \u0111\u01a1n gi\u1ea3n nh\u1ea5t ch\u00ednh l\u00e0 Mind map \u2013 h\u1ecdc b\u1eb1ng s\u01a1 \u0111\u1ed3 t\u01b0 duy. K\u1ec3 c\u1ea3 v\u1edbi b\u00e0i h\u1ecdc c\u00f3 c\u00f4ng th\u1ee9c t\u00ednh to\u00e1n hay kh\u00f4ng, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y v\u1eabn v\u00f4 c\u00f9ng hi\u1ec7u nghi\u1ec7m. Ch\u1ea5t d\u1eabn \u0111i\u1ec7n c\u00f9ng v\u1edbi ch\u1ea5t c\u00e1ch \u0111i\u1ec7n r\u1ea5t d\u1ec5 b\u1ecb nh\u1ea7m l\u1eabn v\u1edbi nhau. V\u00e0 n\u1ebfu nh\u01b0 kh\u00f4ng ch\u00fa \u00fd ho\u1eb7c \u0111\u1ec1 b\u00e0i \u0111\u00e1nh \u0111\u1ed1, h\u1ecdc sinh<\/a> r\u1ea5t d\u1ec5 b\u1ecb m\u1eafc b\u1eaby. Do \u0111\u00f3, c\u00e1c em h\u00e3y k\u1ebb b\u1ea3ng v\u00e0 ph\u00e2n bi\u1ec7t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u00ecnh hi\u1ec3u b\u00e0i nh\u1ea5t nh\u00e9.<\/p>\n\n\n\n V\u1eadt li\u1ec7u g\u00ec l\u00e0m ch\u1ea5t d\u1eabn \u0111i\u1ec7n, ch\u1ea5t c\u00e1ch \u0111i\u1ec7n<\/p>\n\n\n\n Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng th\u00f4ng tin v\u1ec1 ch\u1ea5t d\u1eabn \u0111i\u1ec7n v\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n. Ch\u00fang t\u00f4i tin r\u1eb1ng ki\u1ebfn th\u1ee9c m\u00e0 m\u00ecnh chia s\u1ebb s\u1ebd l\u00e0m cho c\u00e1c b\u1ea1n \u0111\u1ecdc c\u1ea3m th\u1ea5y an t\u00e2m t\u00ecm hi\u1ec3u. \u0110\u1eebng qu\u00ean tham kh\u1ea3o th\u00eam b\u00e0i vi\u1ebft tr\u00ean website c\u1ee7a ch\u00fang t\u00f4i c\u00e1c b\u1ea1n nh\u00e9! Ch\u00fang t\u00f4i g\u1ee3i \u00fd b\u1ea1n t\u00ecm hi\u1ec3u th\u00eam th\u00f4ng tin v\u1ec1 c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n. \u0110\u00e2y l\u00e0 \u0111\u1ea1i l\u01b0\u1ee3ng v\u1eadt l\u00fd xu\u1ea5t hi\u1ec7n r\u1ea5t nhi\u1ec1u trong b\u00e0i thi. B\u1ea1n \u0111\u1eebng b\u1ecf l\u1ee1 nh\u00e9.<\/p>\n\n\n\n Kh\u00e1m ph\u00e1 th\u00eam nh\u1eefng ch\u1ee7 \u0111\u1ec1 l\u00fd th\u00fa kh\u00e1c<\/p><\/blockquote>\n\n\n\n T\u00ednh ch\u1ea5t c\u1ee7a ph\u00e9p nh\u00e2n \u2013 T\u1ed5ng h\u1ee3p l\u00fd thuy\u1ebft d\u1ec5 hi\u1ec3u nh\u1ea5t<\/p>\n\n\n\n \u0110i\u1ec7n th\u1ebf hi\u1ec7u \u0111i\u1ec7n th\u1ebf \u2013 Kh\u00e1i ni\u1ec7m v\u00e0 c\u00f4ng th\u1ee9c chi ti\u1ebft<\/p>\n\n\n\n \u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u l\u00e0 g\u00ec b\u1ea1n c\u00f3 bi\u1ebft? Ki\u1ebfn th\u1ee9c v\u1eadt l\u00fd 9<\/p>\n\n\n\n D\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 g\u00ec b\u1ea1n c\u00f3 bi\u1ebft? Ki\u1ebfn th\u1ee9c v\u1ead<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":" Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn \u0110\u1ed1i v\u1edbi ch\u01b0\u01a1ng tr\u00ecnh v\u1eadt l\u00fd c\u1ea5p trung h\u1ecdc c\u01a1 s\u1edf, vi\u1ec7c hi\u1ec3u bi\u1ebft v\u00e0 v\u1eadn d\u1ee5ng \u0111\u01b0\u1ee3c l\u00fd thuy\u1ebft r\u1ea5t quan tr\u1ecdng. Ch\u00fang t\u00f4i mu\u1ed1n gi\u1edbi thi\u1ec7u v\u1edbi c\u00e1c em ki\u1ebfn th\u1ee9c v\u1ec1 ch\u1ea5t d\u1eabn \u0111i\u1ec7n v\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n. \u0110\u00e2y l\u00e0 l\u00fd thuy\u1ebft n\u1ec1n t\u1ea3ng v\u00f4 c\u00f9ng […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[4,7],"tags":[],"class_list":["post-1003","post","type-post","status-publish","format-standard","hentry","category-trung-hoc","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1003","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=1003"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1003\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=1003"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=1003"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=1003"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}