1.

A compound has a formula “H2X”. X denotes a non-metal. State the following: [5] 1. The electronic configuration of X.2. The valency of X.3. The bonding present in ‘H2X’.4. The bonding present in the compound formed between calcium [20Ca40] and ‘X’.5. The formula of the compound formed between potassium [19K39]​

Answer»

1) 2,8,2 2) 23) covalent bond4) CaX     Ionic bond5) KOfinally X MUST be OXYGEN



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