The Atom

Question 1

Name the three sub-atomic particles of an atom

Answer 1

Protons
Neutrons
Electrons

Question 2

What is a proton

Answer 2

It’s a sub-atomic particle in the atom contained in the nucleus, it has a mass of 1 and a positive charge

Question 3

Explain a neutron

Answer 3

Is a sub-atomic particle in the atom contained in the nucleus. It has a mass of 1 and a neutral charge. The number of neutrons in a nucleus determines the isotope of that element.

Question 4

What is an electron

Answer 4

Mass is negligible( very small ) and they have a negative charge, they orbit the nucleus

Question 5

Explain atomic number

Answer 5

Number of protons in an element

Question 6

Explain isotopes

Answer 6

Atoms of the same element which have different numbers of neutrons.

Question 7

What are the properties of an isotope

Answer 7

They have the same atomic number of that element but a different mass number

Question 8

Explain an atom

Answer 8

The smallest part of an element which still has the properties of that element.