Hydrogen is having one electron. To complete its duplet, it should gain one electron. Then it should become Hydride(H- )ion. But how can it loose one electron to form Hydeogen (H+) ion ? Why does it do so as it is gaining no stability ?
Which one of the following will form an electrovalent bond ?
1) P and Cl 3) H and Ca 4) H and S
2) NH3 and BF3