structure of an atom

Question 1

relative mass of a proton

Answer 1

1

Question 2

relative mass of a neutron

Answer 2

1

Question 3

relative mass of an electron

Answer 3

almost 0 (0.0005)

Question 4

relative charge of a proton

Answer 4

+1

Question 5

relative charge of a neutron

Answer 5

0

Question 6

relative charge of an electron

Answer 6

-1