砌左一個出來 。 = Electrons of Carbon x = Electrons of Oxygen Underlined Oxygen charged as -ive(1) Bolded electrons are covalent bonding Italic X are electrons gained by ionic bonding
NH4 (+) H x X 。 H x。N。x H 。 x H
For NH4(+) 。 = Electrons of H x = Electrons of N Underlined N charged as +ive(1) Bolded electrons are covalent bonding Italic X is electron lost by ionic bonding (which is not in the compound)