An element A belongs to third period and second group of periodic table. The number of valence electron/electrons of element A is
An element A belongs to the third period and group 1 of the periodic table. Find out :
i. The number of valence electrons in its atoms.
ii. Valency of the element.
iii. Name of the element.
An element X belongs to 3rd period and group 2 of the periodic table. State :
(a) number of valence electrons (b) valency (c) metal or non-metal (d) name of the element