Atomic Structure

Question 1

What are atoms made up of

Answer 1

Subatomic particles

Question 2

Name the charges of protons neutrons and electrons

Answer 2

Protons = +1
Neutrons = 0
Electrons = -1

Question 3

Name the masses for protons neutrons and electrons

Answer 3

Protons = 1
Neutrons = 1
Electrons = 1/1836

Question 4

Whats the atomic number

Answer 4

The number of protons in an atom of an element

Question 5

Whats the mass number

Answer 5

The sum of the protons and neutrons in an atom

Question 6

How do you find out the number of neutrons in an atom

Answer 6

Mass number - atomic number

Question 7

Define isotopes

Answer 7

Isotopes are elements whose atoms have the same number of protons and electrons but different numbers of neutrons

Question 8

Whats the equation to work out the relative atomic mass

Answer 8

(% of isotope 1 x mass]. +. ( % of isotope 2 x mass )
——- ——- ——————. ———————————
100. 100