Why Boron family has a tendency to form hydrides?

Which metal has a greater tendency to form metal oxide ?

Give reasons for the following: a] Metals have a tendency to form cations. b] Fluorine atom is smaller than chlorine atom. c] Non-metals have a tendency to gain electrons.

The element which has a tendency to show positive and negative oxidation states is

Which of the following sets of elements have the strongest tendency to form anions?

Lithium is an alkali metal with atomic number = 3 and number of valence electrons = 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 a reason for your answer.

Which of the following has tendency to act as an oxidising agent ?

Which of the following elements does not form hydride by direct heating with dihydrogen ?