A:质子数c>d
B:氢化物的稳定性H2Y>HZ
C:离子半径X2+<W3+
D:第一电离能X>W
China is famous the Great Wall.
(____)大闹天宫 (____)娶亲高老庄
(____)醉打蒋门神 (____)三顾茅庐