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PART1: Which of the following statements about two isotopes is false? They will

ID: 1022794 • Letter: P

Question

PART1: Which of the following statements about two isotopes is false?

They will have the same charge on the nucleus.

They will have different numbers of neutrons.

They will have the same chemical reactivity.

They will have the same atomic numbers.

They will have the same atomic weights.

PART 2: Which of the following is not an ionic compound?

H2S

CaCl2

NiCl2

CuO

NaBr

a.

They will have the same charge on the nucleus.

b.

They will have different numbers of neutrons.

c.

They will have the same chemical reactivity.

d.

They will have the same atomic numbers.

e.

They will have the same atomic weights.

Explanation / Answer

Isotope = species having same number of protons but having different mass numbers.

1.Statements about two isotopes is false?

They will have the same atomic weights.

2.Not ionic compounds

H2S and NiCl2