Question

5. Write the name and symbol of the element from the description.

a. The atom having the smallest size.

b. The atom having the smallest atomic mass.

c. The most electronegative atom.

d. The noble gas with the smallest atomic radius.

e. The most reactive nonmetal.

Answer 1

a. The atom having the smallest size.

Hydrogen (H) 

b. The atom having the smallest atomic mass.

Hydrogen (H)

c. The most electronegative atom.

Fluorine (F)

d. The noble gas with the smallest atomic radius.

Helium (he)

e. The most reactive nonmetal. 

Fluorine (F)