用化学符号表示2?1h7|:t;u(q
(1)氧单质)n(M+E2?1h7|:t;u(q
(2)6个五氧化二磷分子 5w.~:|.@(W6F/N9v2?1h7|:t;u(q
(3)氖气*Q-i9W,z/G5r5y)H2?1h7|:t;u(q
(4)n个硫原子7g6z,x0e3L6G-b6E:j.v:?*G6i)q2?1h7|:t;u(q
(5)m个氢气分子)d3F*\7k(L9j(u5z2?1h7|:t;u(q
(6)地壳中含量最多的金属元素0g/{2n.T-K2?1h7|:t;u(q