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Subatomic particle with a charge of 0

• neutron
• proton
• electron
• quark

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

Subatomic particles with a positive charge

• neutrons
• atomic mass
• protons
• isotopes

The smallest particle of an element.

• Element

• Molecule

• Atom

These are found in the nucleus and have a neutral charge.

• proton

• electron

• neutron

The number 16 for the atomic element sulfur is the

• ionic number

• isotope

• atomic mass

• atomic number

How many protons does sulfur have?

• 32

• 16

• 48

• 12

How many electrons does sulfur have

• 16

• 32

• 48

• 12

In an atom, the number of protons is equal to the number of ____________.

• energy levels

• neutrons

• neurons

• electrons

What are subatomic particles? 

• the nucleus 
• electron cloud
• positive charge
• electrons, protons, and neutrons