G7 T1 L1 U1

The Sphinx statue is made of sandstone.

• true

• false

(8) The nucleus of tritiumn atom contains one proton and one neutron.

• true

• false

(9) Chlorine -37 differs from chlorine -35 in having a greater number of protons.

• true

• false

6) The chemical symbol of magnesium is MG

• true

• false

(5) The proton is the subatomic particle which has the smallest mass.

• true

• false

(4) The masses of subatomic particles are measured in milliliters

• true

• false

The Sphinx statue is made of sandstone.

• true

• false

(3) The Greek philosophers believed that matter was made of indivisible part

molecules.

• true

• false

(2) Matter is composed of atoms, which in turn are composed of smaller unit

called molecules.

• true

• false

() What is the subatomic component that has the smallest mass ?

• Electron

• Nucleon

• Proton

• Neutron