Structure of an Atom

What are the three names of the subatomic particles?

Proton, neutron and electron

What is the relative mass of a proton and neutron?

One

What is the relative mass of an electron?

2000 times lighter than a proton or a neutron

A neutron is positive

False

Everything on the periodic table are neutral

True

What force do protons and neutrons attract?

A strong force

Atomic number

The number of protons in an atom

Atomic mass

Is the sum of protons and neutrons in an atom

What is atomic number also called?

Atomic mass

What makes an atom neutral?

The number of protons is the same as the electrons

How do you find the number of neutrons?

Subtract the atomic number from the mass number

The closer an electron is to the nucleus the less energy it has.

True

What is the order of electrons?

2,8,8

what does the group number tell you?

The group number tells you the number of valence electrons there are.

What is an isotope?

An isotope is an element with the same protons but different neutrons.

All elements in the periodic table are not neutral.

False

What one group is stable?

18