Atomic Structure

Question 1

What is the atomic number

Answer 1

The number of protons

Question 2

What is the mass number

Answer 2

The number of protons plus neutrons

Question 3

What is an isotope

Answer 3

Forms of elements which have the same number of protons but different numbers of neutrons

Question 4

How do you calculate the relative atomic mass

Answer 4

(The abundance of an isotope x the mass of that isotope) / 100

Question 5

What is the relative atomic mass

Answer 5

The average mass of an atom of an element in comparison to a carbon-12 atom

Question 6

How do you calculate the relative formula mass

Answer 6

You add up all the relative atomic masses of all the elements in the formula

Question 7

What must an atom have in order to be neutral overall which it must be if it’s to be called an atom

Answer 7

The same number of protons and electrons

Question 8

What happens if an atom isn’t neutral overall

Answer 8

Then it becomes an ion