Question

In the second period, Li to Ne identify the element
(a) Most reactive element
(b) Most non-reactive non-metal
(c) Largest atomic radius
(d) With valency equal to 4

Answer 1

In the second period, there are 8 elements.

a) The most reactive element in period 2 is Fluorine as it has the highest electronegativity.

b) Most non-reactive non-metal in group 2 is neon (Ne). This is because neon is an inert gas and it is stable in its natural monoatomic state.

c) Li has the largest atomic radius in group 2. The atomic radius goes on decreasing from left to right in any period of the periodic table.