Question

please help me is urgent ​

Answer 1

Answer:

1. Atomic No. = 1

Mass Number = 1

Protons = 1

Electrons = 1

2. Atomic No. = 2

Mass Number = 4

Protons = 2

Electrons = 2

3. Atomic No. = 3

Mass Number = 7

Protons = 3

Electrons = 3

4. Atomic No. = 6

Mass Number = 12

Protons = 6

Electrons = 6

5. Atomic No. = 10

Mass Number = 20

Protons = 10

Electrons = 10

6. Atomic No. = 18

Mass Number = 40

Protons = 18

Electrons = 18

Answer 2

Answer:

please refer attach picture

Explanation: