常見(jiàn)例句雙語(yǔ)例句The number of neutrons in an atom, the neutron number, is given by the quantity A-Z .這個(gè)術(shù)語(yǔ)指的是,純?cè)氐脑优c所有的物質(zhì)單一類型。This means you can vary the neutron number without changing chemical identity, because chemical identity is fixed by the proton.這表示你可以改變中子數(shù),而不會(huì)改變它的化學(xué)特性,因爲(wèi)化學(xué)特性是由質(zhì)子決定的。So carbon 12. We know that it has the proton number, by definition, is 6. And the neutron number, 6 from 12 is 6. So it has 6 protons and 6 neutrons.所以碳12,我們知道它有質(zhì)子數(shù),根據(jù)定義,那就是6,而電子數(shù),12減6等於6,所以它有6個(gè)中子。原聲例句This means you can vary the neutron number without changing chemical identity, because chemical identity is fixed by the proton.這表示你可以改變中子數(shù),而不會(huì)改變它的化學(xué)特性,因爲(wèi)化學(xué)特性是由質(zhì)子決定的。麻省理工公開(kāi)課 - 固態(tài)化學(xué)導(dǎo)論課程節(jié)選Now the last thing is that because the neutron has no net charge, we can change neutron number.現(xiàn)在,最後一件事是,因爲(wèi)中子沒(méi)有淨(jìng)電子,我們可以改變中子數(shù)。麻省理工公開(kāi)課 - 固態(tài)化學(xué)導(dǎo)論課程節(jié)選So carbon 12. We know that it has the proton number, by definition, is 6. And the neutron number, 6 from 12 is 6. So it has 6 protons and 6 neutrons.所以碳12,我們知道它有質(zhì)子數(shù),根據(jù)定義,那就是6,而電子數(shù),12減6等於6,所以它有6個(gè)中子。麻省理工公開(kāi)課 - 固態(tài)化學(xué)導(dǎo)論課程節(jié)選 返回 neutron number