1.Which of the following does not content ionic bond?
A.Sulfur dioxide
B.Sodium oxide
C.Silver oxide
D.Strontium oxide
2.The measure of the ease at which an electric charge of heat can pass through a material.
A.accuracy
B.conductivity
C.Ductivity
D.Solubility
3.An atom differs from its ion is which among the following ?
A.mass number
B.atomic number
C.neutrons
D.numbers of proton
4.Atoms that have a positive and negative charge are called?
A.ions
B.dot and cross
C.metal in group 2
D.group 0
5.Atoms undergo and bonding in order to _______.
A.attain stability
B.lose stability
C.move freely
D.increase energy ​