magnesium-24
短语释义与例句
n.
-
1.
The major stable isotope of magnesium, 2412Mg, having twelve protons and twelve neutrons; it amounts to about 79% of the element in nature
不可数 物理
The major stable isotope of magnesium, 2412Mg, having twelve protons and twelve neutrons; it amounts to about 79% of the element in nature