B\u00e0i 1 (trang 289 sgk V\u1eadt L\u00ed 12 n\u00e2ng cao):<\/b>\u00a0Ph\u1ea3n \u1ee9ng nhi\u1ec7t h\u1ea1ch l\u00e0 ph\u1ea3n \u1ee9ng h\u1ea1t nh\u00e2n<\/span><\/p>\nA. T\u1ecfa nhi\u1ec7t.<\/p>\n
B. C\u1ea7n m\u1ed9t nhi\u1ec7t \u0111\u1ed9 cao m\u1edbi th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c.<\/p>\n
C. H\u1ea5p th\u1ee5 m\u1ed9t nhi\u1ec7t l\u01b0\u1ee3ng l\u1edbn.<\/p>\n
D. Trong \u0111\u00f3, h\u1ea1t nh\u00e2n c\u1ee7a c\u00e1c nguy\u00ean t\u1eed b\u1ecb nung ch\u1ea3y th\u00e0nh c\u00e1c nuclon.<\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
Ch\u1ecdn B.<\/p>\n
B\u00e0i 2 (trang 289 sgk V\u1eadt L\u00ed 12 n\u00e2ng cao):<\/b>\u00a0Ph\u1ea3n \u1ee9ng nhi\u1ec7t h\u1ea1ch v\u00e0 ph\u1ea3n \u1ee9ng ph\u00e2n h\u1ea1ch l\u00e0 hai ph\u1ea3n \u1ee9ng h\u1ea1t nh\u00e2n tr\u1ea3i ng\u01b0\u1ee3c nhau v\u00ec.<\/span><\/p>\nA. M\u1ed9t ph\u1ea3n \u1ee9ng t\u1ecfa v\u00e0 m\u1ed9t ph\u1ea3n \u1ee9ng thu n\u0103ng l\u01b0\u1ee3ng.<\/p>\n
B. M\u1ed9t ph\u1ea3n \u1ee9ng x\u1ea3y ra \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, ph\u1ea3n \u1ee9ng kia \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/p>\n
C. M\u1ed9t ph\u1ea3n \u1ee9ng l\u00e0 t\u1ed5ng h\u1ee3p hai h\u1ea1t nh\u00e2n nh\u1eb9 th\u00e0nh m\u1ed9t h\u1ea1t nh\u00e2n n\u0103ng h\u01a1n, ph\u1ea3n \u1ee9ng kai l\u00e0 s\u1ef1 v\u1ee1 m\u1ed9t h\u1ea1t nh\u00e2n n\u1eb7ng th\u00e0nh hai h\u1ea1t nh\u1eb9 h\u01a1n.<\/p>\n
D. M\u1ed9t ph\u1ea3n \u1ee9ng di\u1ec5n bi\u1ebfn r\u1ea5t ch\u1eadm, ph\u1ea3n \u1ee9ng kia r\u1ea5t nhanh.<\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
Ch\u1ecdn C.<\/p>\n","protected":false},"excerpt":{"rendered":"
C\u00c2U H\u1eceI C\u00e2u 1 (trang 289 sgk V\u1eadt L\u00ed 12 n\u00e2ng cao):\u00a0Ph\u1ea3n \u1ee9ng nhi\u1ec7t h\u1ea1ch l\u00e0 g\u00ec? N\u00eau \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec3 ph\u1ea3n \u1ee9ng nhi\u1ec7t h\u1ea1ch x\u1ea3y ra. L\u1eddi gi\u1ea3i: Xem m\u1ee5c 1 ph\u1ea7n KTCB. C\u00e2u 2 (trang 289 sgk V\u1eadt L\u00ed 12 n\u00e2ng cao):\u00a0N\u00eau c\u00e1c \u01b0u \u0111i\u1ec3m c\u1ee7a n\u0103ng l\u01b0\u1ee3ng do ph\u1ea3n \u1ee9ng nhi\u1ec7t h\u1ea1ch […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1304],"tags":[1432,1431],"yoast_head":"\n
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