如題,為什麼helium的atomic radius 比hydrogen 的 atomic radius 小?
2006-10-23 14:52:40 · 1 個解答 · 發問者 ? 2 in 科學 ➔ 化學
The nucleus of helium has 2 protons while hydrogen has only 1 proton.
The nuclear charge of helium is greater and has stronger attraction force to the
electron(s). Its atomic radius becomes smaller than hydrogen.
2006-10-23 15:18:01 · answer #1 · answered by ? 7 · 0⤊ 0⤋