molecular elements

Question 1

How many elements form molecules consisting of diatomic molecules and what are they.

Answer 1

there are 7 elements that form molecules consisting of two atoms called diatomic molecules.
H2 N2 O2 F2 Cl2 Br2 I2

Question 2

What happens when metals lose electrons?

Answer 2

Metals lose electrons and become cations.

Question 3

What happens when nonmetals gain electrons?

Answer 3

Nonmetals gain electrons and become anions.

Question 4

What happens when cations and anions come into contact with one another?

Answer 4

Cations and anions attract each other because they have opposite charges.