Topic 4 - atomic structure ( 2. the structure of the atom )

Question 1

charge of the electron

Answer 1

-1

Question 2

mass of electron

Answer 2

almost 0

Question 3

charge of neutron

Answer 3

0

Question 4

what are ion

Answer 4

atoms are neutral but when electrons are added or removed then the atom becomes a charged particle

Question 5

what are isotopes

Answer 5

different forms of the same element. a same number of protons but different number of neutrons.