choose a letter for the question
5 Atomic mass is the sum of protons and neutron. *


a. true
b. false
6. They are ductile and malleable. *

a .metals
b.non metals
c.metalloids
7. They are good conductors of heat and electricity. *

a.metals
b.non metals
c.metalloids
8. They are brittle and nonductile. *

a. metals
b. non metals
c. metalloids
9. They are poor conductors of heat and electricity, *

a. metals
b. non metals
c. metalloids
10. They have properties between metals and non metals. *

a. metals
b. non metals
c. metalloids