Atoms review

all matter is made of what 

• energy 
• atoms 
• electrons 
• compounds 

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

the central region of an atom where its neutrons and protons are is its 

• nucleus 
• electron cloud
• core 
• center 

Particles in an atom that are neutral and have no charge are 

• negatrons 
• electrons 
• neutrons 
• protons 

Most of the mass of an atom is found in the ______.

• nucleus

• proton

• electron cloud

• isotope

electrons have this type of charge?

• negative
• positive
• neutral

The smallest particle with characteristics of an element is known as the

• Periodic Table

• Atom

• Proton

• Electron

How does the size of a proton compare to the size of a neutron?

• larger
• smaller
• equal

These particles orbit around the nucleus of an atom.  What are they called?

• electrons
• protons
• neutrons
• photons

Where are electrons of an atom found?

• Nucleus
• Electron Cloud
• Some are in the nucleus and some in the electron cloud.
• They are moving everywhere.