Question

Lithium is an alkali metal with atomic number = 3 and number of valence electron is
1. The formula of the hydride of lithium is LiH. Boron and carbon are placed in group
13 and 14 respectively with valence electrons 3 and 4. Write the formulae of the
hydrides of boron and carbon giving reason for your answer.

Answer 1

Answer:

Lithium is an alkali metal with atomic number 3 and no of valence electron is 1. the formula of the hydride of lithium is LiH . ... Boron is in group 13, it needs to lose 3 electrons to reach Neon's electronic configuration and shares its electrons with 3 H atoms and forms BH

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Answer 2

The formula of the hydride of lithium is IiH. Boron and carbon are placed in group 13 and 14 respectively with valence electrons 3 and 4.