Atoms

All matter is made of what?

• energy 
• atoms 
• electrons 
• compounds 

A particle that moves around outside the nucleus is a(n)...

• Proton
• Neutron
• Electron
• Quark

Neutrons are _______________ particles.

• negative
• positive
• neutral
• cows

The positive particles of an atom are called ___________.

• electrons 
• atoms
• neutrons 
• protons 

Atoms have no electric charge because they...

• have an equal number of charged and non charged particles
• have neutrons in their nuclei
• have an equal number of electrons and protons
• have an equal number of neutrons and protons

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

• nucleus 
• electron cloud
• core 
• center 

An atom with atomic number 6 would have how many protons?

• 6
• 12
• 3
• cannot be determined 

How many protons are in the element, Sodium, with an atomic number of 11?

• 23
• 11
• 13
• 14

How many electrons are in the element, Oxygen, with the atomic number of 8?

• 7
• 10
• 8
• 9

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18