CHEMISTRY-RELATIVE ATOMIC MASSthe mass of a hydrogen atom 1/1H is equal to 1/12 of the mass of a carbon-12 atom,so its relative isotopic mass is 1.A magnesium atom 24/12Mg is twice as heavy as a carbon-12 atom,so its relative isotopic mass is 24再给另一个例子不要用英文角度解释
问题描述:
CHEMISTRY-RELATIVE ATOMIC MASS
the mass of a hydrogen atom 1/1H is equal to 1/12 of the mass of a carbon-12 atom,
so its relative isotopic mass is 1.A magnesium atom 24/12Mg is twice as heavy as a carbon-12 atom,so its relative isotopic mass is 24
再给另一个例子
不要用英文角度解释
答