Chemistry unit 1.4 Relative electrical charges of subatomic particles

Question 1

are atoms electrically charged?

Answer 1

no

Question 2

atomic number

Answer 2

number of protons or electrons

Question 4

radius of atoms

Answer 4

1 x 10^-1 m

Question 5

radius of a nucleus

Answer 5

1 x 10^-14

Question 6

mass number

Answer 6

sun of the protons and neutrons in an atom