Important: Atomic Structure

Question 1

Relative mass of proton

Answer 1

1

Question 2

Relative charge of proton

Answer 2

+1

Question 3

Relative mass of neutron

Answer 3

1

Question 4

Relative charge of neutron

Answer 4

0

Question 5

Relative mass of electron

Answer 5

1/ 1835

0.0005

Question 6

Relative charge of electron

Answer 6

-1

Question 7

Atomic no. =?

Answer 7

No. of electrons

No. of protons

Question 8

Mass no. =?

Answer 8

Protons + neutrons

Question 9

No. of protons = ?

Answer 9

Atomic no.

Question 10

No. of neutrons=?

Answer 10

Mass no. - atomic no.

Question 11

No. of electrons= ?

Answer 11

Atomic no.

Question 12

Definition of isotope ( 2 things )

Answer 12

1. Atoms with the same no. of protons but different no. of neutrons
2. Atoms of the same element with same atomic no. but different mass no.

Question 13

Cations= ?

Answer 13

+ve = loss of electrons from neutral atom

Question 14

Anions=?

Answer 14

-ve = gain of electrons to neutral atom