Calcium is an element with atomic number 20. Stating reason, answer each of the following questions:
(i) Is calcium a metal or a non-metal?
(ii) Will its atomic radius be larger or smaller than that of potassium with number 19 ?
(iii) Write the formula of its oxide.
Calcium is an element with atomic number 20. Stating reason, answer each of the following questions:
(i) Calcium is a metal. It has tendency to loose electrons and form electropositive charge on itself.
(ii) Atomic radii of calcium is smaller than potassium because when we move from left to ’ right in periodic table force of attraction by the nucleuses increases and thus, size decreases.
(iii) CaO.