Which of the following elements has the largest atomic radius? A.
neon (Ne)
B.
oxygen (0)
C
nitrogen (N)
D.
fluorine (F)

nitrogen

Explanation:

as the group number increases, the atomic radius decreases

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).