Atoms

Question 1

What is an isotope ?

Answer 1

Atoms with the same atomic number( same number of protons) but different mass number ( different number of neutrons

Question 2

What is relative atomic mass ?

Answer 2

The weighted average mass of the isotopes of that element

Question 3

What is atomic number?

Answer 3

The number of protons in the nucleus of an atom

Also the number of electrons

Question 4

What is mass number ?

Answer 4

Number of protons + number of neutrons in the nucleus of an atom

Question 5

What is a relative charge and mass of proton ?

Answer 5

Charge= +1
Mass=1

Question 6

What is the relative charge and mass of a neutron ?

Answer 6

Charge=0
Mass=1

Question 7

What is the relative charge and mass of an electron ?

Answer 7

Charge=-1
Mass=1/1836
=0