Subatomic particles

Question 1

Atomic no. of an element (Z)

Answer 1

No. of electrons = No. of protons

Question 2

Atomic mass of an element (A)

Answer 2

No. of protons + No. of neutrons

Question 3

No. of neutrons

Answer 3

Atomic mass - No. of protons

Question 4

No. of neutrons is always calculated with help of ________

Answer 4

No. of protons

Question 5

No. of electrons depends on

Answer 5

Charge, valency, atomic no.

Question 6

No. of protons depends only on________ and remains same with or without _______

Answer 6

Atomic no. ; charge

Question 7

Atomic mass of S03 2-
No. of protons
No. of neutrons
No. of electrons

Answer 7

1. 80
2. 40
3. 40
4. 42