\u0110i\u1ec1u n\u00e0y b\u1eaft \u0111\u1ea9u t\u1eeb m\u1ed9t l\u1ea9n nh\u1eadt th\u1ef1c to\u00e0n ph\u1ea9n x\u1ea3y ra v\u00e0o ng\u00e0y 18 th\u00e1ng 8 n\u0103m 1868. L\u00fac \u0111\u00f3, m\u1ed9t nh\u00e0 khoa h\u1ecdc ng\u01b0\u1eddi Ph\u00e1p t\u00ean l\u00e0 Sali\u0111\u1ebfn An \u0110\u1ed9 \u0111\u1ec3 quan s\u00e1t nh\u1eadt th\u1ef1c to\u00e0n ph\u1ea9n, \u00f4ng ph\u00e1t hi\u1ec7n ra trong quang ph\u1ed5 c\u1ee7a tai l\u1eeda M\u1eb7t tr\u1eddi c\u00f3 m\u1ed9t \u0111\u01b0\u1eddng m\u00e0u v\u00e0ng r\u1ea5t s\u00e1ng v\u00e0 kh\u00f4ng th\u1ec3 \u0111\u1ed1i chi\u1ebfu v\u1edbi nh\u1eefng \u0111\u01b0\u1eddng m\u00e0u v\u00e0ng trong quang ph\u1ed5 c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 \u0111\u00e3 bi\u1ebft kh\u00e1c.<\/p>\n\n\n\n
Ng\u00e0y h\u00f4m sau, \u00f4ng m\u1ed9t l\u1ea9n n\u1eefa \u0111i quan s\u00e1t M\u1eb7t tr\u1eddi v\u1edbi t\u00e2m tr\u1ea1ng th\u1ea5p th\u1ecfm kh\u00f4ng y\u00ean, \u0111i\u1ec1u khi\u1ebfn \u00f4ng v\u1eeba h\u1ee9ng th\u00fa v\u1eeba kinh ng\u1ea1c l\u00e0: \u0111\u01b0\u1eddng m\u00e0u v\u00e0ng l\u1ea1 \u0111\u00f3 v\u1eabn \u1edf v\u1ecb tr\u00ed ban \u0111\u1ea9u. Th\u1ebf l\u00e0 Salil\u1eadp t\u1ee9c vi\u1ebft th\u01b0 g\u1eedi cho vi\u1ec7n khoa h\u1ecdc Ph\u00e1p, b\u00e1o c\u00e1o k\u1ebft qu\u1ea3 quan s\u00e1t c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n
Nh\u00e0 khoa h\u1ecdc ng\u01b0\u1eddi Anh Lokie khi ti\u1ebfn h\u00e0nh quan s\u00e1t \u1edf v\u00f9ng \u0111\u1ea5t n\u00e0y c\u0169ng \u0111\u00e3 ph\u00e1t hi\u1ec7n ra \u0111\u01b0\u1eddng m\u00e0u v\u00e0ng \u0111\u00f3. Ng\u00e0y 20 th\u00e1ng 10 \u00f4ng c\u0169ng \u0111\u00e3 vi\u1ebft th\u01b0 g\u1eedi cho vi\u1ec7n khoa h\u1ecdc Ph\u00e1p, b\u00e1o c\u00e1o k\u1ebft qu\u1ea3 quan s\u00e1t c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n
Th\u1eadt l\u00e0 m\u1ed9t s\u1ef1 tr\u00f9ng h\u1ee3p! Hai b\u1ea3n b\u00e1o c\u00e1o li\u00ean quan \u0111\u1ebfn c\u00f9ng m\u1ed9t s\u1ef1 vi\u1ec7c, g\u1eedi \u0111\u1ebfn vi\u1ec7n khoa h\u1ecdc Ph\u00e1p v\u00e0o c\u00f9ng m\u1ed9t th\u1eddi gian. C\u00f9ng ng\u00e0y 26 th\u00e1ng 10, b\u1ea3n b\u00e1o c\u00e1o \u0111\u00e3 \u0111\u01b0\u1ee3c tuy\u00ean b\u1ed1 trong cu\u1ed9c h\u1ed9i ngh\u1ecb. L\u00fac \u0111\u00f3, \u0111\u01b0\u1eddng m\u00e0u v\u00e0ng \u0111\u01b0\u1ee3c cho l\u00e0 m\u1ed9t nguy\u00ean t\u1ed1 m\u1edbi kh\u00f4ng t\u1ed3n t\u1ea1i tr\u00ean Tr\u00e1i \u0111\u1ea5t m\u00e0 M\u1eb7t tr\u1eddi c\u00f3 ri\u00eang, th\u1ebf l\u00e0 m\u1ecdi ng\u01b0\u1eddi g\u1ecdi n\u00f3 l\u00e0 Helium, t\u1ee9c l\u00e0 nguy\u00ean t\u1ed1 M\u1eb7t tr\u1eddi.<\/p>\n\n\n\n
Nguy\u00ean t\u1ed1 M\u1eb7t tr\u1eddi \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y tr\u00ean Tr\u00e1i \u0111\u1ea5t, l\u00fac \u0111\u00f3 \u0111\u00e3 l\u00e0 chuy\u1ec7n c\u1ee7a 27 n\u0103m sau.<\/p>\n\n\n\n
T h\u00e1ng 2 n\u0103m 1895, nh\u00e0 ho\u00e1 h\u1ecdc n\u1ed5i ti\u1ebfng ng\u01b0\u1eddi Anh Rolan\u0111ang b\u1eadn tr\u1eafc nghi\u1ec7m c\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a nguy\u00ean t\u1ed1 ho\u00e1 h\u1ecdc Acg\u00f4ng (Ar). Acg\u00f4ng l\u00e0 nguy\u00ean t\u1ed1 \u00f4ng m\u1edbi ph\u00e1t hi\u1ec7n n\u0103m tr\u01b0\u1edbc v\u00e0 c\u0169ng l\u00e0 m\u1ed9t nguy\u00ean t\u1ed1 c\u00f3 t\u00ednh tr\u01a1. B\u1ea1n c\u1ee7a \u00f4ng c\u00f3 \u00fd nh\u1eafc nh\u1edf \u00f4ng r\u1eb1ng tr\u01b0\u1edbc \u0111\u00e2y khi c\u00f3 ng\u01b0\u1eddi l\u00e0m th\u00ed nghi\u1ec7m v\u1ec1 qu\u1eb7ng Yt\u01a1ri v\u00e0 Urani c\u0169ng \u0111\u00e3 t\u1eebng c\u00f3 \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 kh\u00ed th\u1ec3 kh\u00f4ng ph\u1ea3i l\u00e0 ch\u1ea5t d\u1eabn ch\u00e1y, v\u1eeba kh\u00f4ng ph\u1ea3i l\u00e0 ch\u1ea5t t\u1ef1 nhi\u00ean. \u00d4ng h\u00e3y ch\u00fa \u00fd m\u1ed9t ch\u00fat, kh\u00ed th\u1ec3 n\u00e0y ph\u1ea3i ch\u0103ng ch\u00ednh l\u00e0 Acg\u00f4ng. Rolanc\u1ea3m th\u1ea5y l\u1eddi nh\u1eafc nh\u1edf c\u1ee7a b\u1ea1n m\u00ecnh r\u1ea5t c\u00f3 l\u00fd. Khi \u00f4ng d\u00f9ng k\u00ednh ph\u00e2n \u00e1nh s\u00e1ng ki\u1ec3m tra kh\u00ed th\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c t\u1eeb qu\u1eb7ng Yt\u01a1ri v\u00e0 Urani, \u00f4ng \u0111\u00e3 ph\u00e1t hi\u1ec7n th\u1ea5y \u0111\u00e2y c\u0103n b\u1ea3n kh\u00f4ng ph\u1ea3i l\u00e0 nguy\u00ean t\u1ed1 Acg\u00f4ng. Trong quang ph\u1ed5 c\u1ee7a n\u00f3 c\u00f3 m\u1ed9t \u0111\u01b0\u1eddng m\u00e0u v\u00e0ng s\u00e1ng v\u00e0 v\u00e0i \u0111\u01b0\u1eddng c\u00f3 m\u00e0u s\u1eafc kh\u00e1c, n\u00f3 c\u0103n b\u1ea3n kh\u00f4ng gi\u1ed1ng v\u1edbi \u0111\u01b0\u1eddng quang ph\u1ed5 c\u1ee7a Acg\u00f4ng.<\/p>\n\n\n\n
L\u00fac \u0111\u1ea9u, Rolan cho r\u1eb1ng, \u0111\u01b0\u1eddng m\u00e0u v\u00e0ng l\u1ea1 n\u00e0y \u0111\u01b0\u1ee3c ph\u00e1t ra t\u1eeb nguy\u00ean t\u1ed1 Natri, c\u00f3 th\u1ec3 trong khi l\u00e0m th\u00ed nghi\u1ec7m, \u00f4ng \u0111\u00e3 tr\u1ed9n l\u1eabn nh\u1eefng ch\u1ea5t gi\u1ed1ng nh\u01b0 mu\u1ed1i v\u00e0o. Sau khi ki\u1ec3m tra t\u1ec9 m\u1ec9 v\u00e0 l\u00e0m l\u1ea1i th\u00ed nghi\u1ec7m, \u0111\u01b0\u1eddng m\u00e0u v\u00e0ng l\u1ea1 \u0111\u00f3 v\u1eabn \u1edf ch\u1ed7 c\u0169. \u0110\u1ec3 l\u00e0m r\u00f5 ngu\u1ed3n g\u1ed1c xu\u1ea5t x\u1ee9 c\u1ee7a \u0111\u01b0\u1eddng m\u00e0u v\u00e0ng, \u00f4ng \u0111\u1eb7t v\u00e0i h\u1ea1t mu\u1ed1i ki\u1ec1m v\u00e0o trong \u1ed1ng thu\u1ef7 tinh c\u1ee7a kh\u00ed th\u1ec3 qu\u1eb7ng Yt\u01a1ri v\u00e0 Urani \u0111\u1ec3 xem \u0111\u01b0\u1eddng m\u00e0u v\u00e0ng c\u00f3 tr\u00f9ng kh\u1edbp v\u1edbi \u0111\u01b0\u1eddng v\u00e0ng tr\u01b0\u1edbc \u0111\u00e2y kh\u00f4ng. K\u1ebft qu\u1ea3 l\u00e0, trong quang ph\u1ed5 kh\u00ed th\u1ec3 \u0111\u1ed3ng th\u1eddi xu\u1ea5t hi\u1ec7n \u0111\u01b0\u1eddng nh\u01b0 m\u00e0u v\u00e0ng \u0111\u1ea1i di\u1ec7n cho Natri (Na) v\u00e0 \u0111\u01b0\u1eddng m\u00e0u v\u00e0ng kh\u00f3 hi\u1ec3u \u0111\u00f3.<\/p>\n\n\n\n
L\u00fac n\u00e0y, Rolan ngh\u0129 \u0111\u1ebfn \u0111\u01b0\u1eddng m\u00e0u v\u00e0ng m\u00e0 Sali v\u00e0 Lokie ph\u00e1t hi\u1ec7n trong quang ph\u1ed5 27 n\u0103m tr\u01b0\u1edbc, l\u1ebd n\u00e0o trong qu\u1eb7ng Yt\u01a1ri v\u00e0 Urani tr\u00ean Tr\u00e1i \u0111\u1ea5t c\u0169ng c\u00f3 nguy\u00ean t\u1ed1 M\u1eb7t tr\u1eddi.<\/p>\n\n\n\n
Qua h\u00e0ng lo\u1ea1t th\u00ed nghi\u1ec7m nghi\u1ec7m ch\u1ee9ng th\u00ec s\u1ef1 vi\u1ec7c cu\u1ed1i c\u00f9ng \u0111\u00e3 \u0111\u01b0\u1ee3c l\u00e0m s\u00e1ng t\u1ecf, nguy\u00ean t\u1ed1 M\u1eb7t tr\u1eddi v\u00e0 kh\u00ed th\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c trong qu\u1eb7ng Yt\u01a1ri v\u00e0 Urani r\u00f5 r\u00e0ng l\u00e0 c\u00f9ng m\u1ed9t nguy\u00ean t\u1ed1 Helium (He).<\/p>\n","protected":false},"excerpt":{"rendered":"
\u0110i\u1ec1u n\u00e0y b\u1eaft \u0111\u1ea9u t\u1eeb m\u1ed9t l\u1ea9n nh\u1eadt th\u1ef1c to\u00e0n ph\u1ea9n x\u1ea3y ra v\u00e0o ng\u00e0y 18 th\u00e1ng 8 n\u0103m 1868. L\u00fac \u0111\u00f3, m\u1ed9t nh\u00e0 khoa h\u1ecdc ng\u01b0\u1eddi Ph\u00e1p t\u00ean l\u00e0 Sali\u0111\u1ebfn An \u0110\u1ed9 \u0111\u1ec3 quan s\u00e1t nh\u1eadt th\u1ef1c to\u00e0n ph\u1ea9n, \u00f4ng ph\u00e1t hi\u1ec7n ra trong quang ph\u1ed5 c\u1ee7a tai l\u1eeda M\u1eb7t tr\u1eddi c\u00f3 m\u1ed9t \u0111\u01b0\u1eddng […]<\/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":[1,15],"tags":[],"class_list":["post-11103","post","type-post","status-publish","format-standard","hentry","category-general","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/11103","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=11103"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/11103\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=11103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=11103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=11103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}