Book 1B revision

It is the structure of

• sodium chloride

• argon

• caesium chloride

• chlorine

The black balls are carbon atom. It is the structure of

(a)  

It is the structure of

(a)  

It is the structure of

(a)  

It is the structure of

(a)  

Dry ice contains a regular arrangement of carbon dioxide molecules held closely together by

• strong covalent bonds

• weak covalent bonds

• strong van der Waals’ forces

• weak van der Waals’ forces