Question

Write True or False-: 1) Atomic Number of the element+No. of Neutrons in its nucleus=Mass number of the atom of an element. 2) All metals show positive valencies. 3) Sodium Carbonate has the molecular formula NaHCO3. 4) Mass of electron and Neutron are same.

Answer 1

Answer:

4)false

1)true

3)true

Answer 2

Answer:

hey mate

1) true

2) true

3) false

4) false

hope it works!