Atoms, Compounds, and mixtures. Oh my!

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

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

• negatrons 
• electrons 
• neutrons 
• protons 

In an atom, what is the number of protons equal to?

• the number of electrons
• the number of neutrons
• the number of molecules
• the number of nuclei

Which of the following is a negatively charged subatomic particle?

• Electron
• Proton
• Neutron
• Quark

The particles that are found in the nucleus of an atom are

• neutrons and electrons
• electrons only
• protons and neutrons
• protons and electrons

Where are electrons of an atom found?

• Nucleus

• All outside of the nucleus

• Some are in the nucleus and some in the electron cloud.

• They are moving everywhere.

an atom with atomic number 6 would have how many protons 

• 6
• 12
• 3
• cannot be determined 

What does the 1.00794 stand for?

• mass number

• atomic number

• average atomic mass

• number of protons

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

• 14
• 7
• 15
• 18

If the mass number of this chlorine atom is 36, how many neutrons does it have?

• 17

• 18

• 19

• can't be determined