The atomic number identifies the number of __________.

• electrons

• atoms

• protons

• neutrons

Subatomic particles that have a negative charge

• electrons

• protons

• quarks

• neutrons

How many protons does sulfur have?

• 32

• 16

• 48

• 12

How many electrons does sulfur have

• 16

• 32

• 48

• 12

Subatomic particle that has a positive charge

• electron

• poitron

• neutron

• proton

In what part of an atom can the protons and neutrons be found?

• nucleus

• neutrine

• electron cloud

• proton cloud

Which parts of the atom move around the nucleus?

• electrons

• protons

• electrode particles

• neutrons

What mass does a neutron have?

• 1 amu

• 0 amu

• -1 amu

• +2 amu

Complete the missing label on the diagram.

• Neutron
• Centre
• Nucleus
• Sub atomic particle

In order for an atom to be neutral what has to be true?

• The atom has more protons than neutrons
• The atom has more neutrons than protons
• The atom has the same number of protons and neutrons
• The atom has the same number of protons and electrons