Chemistry Exam Review - Atoms, Periodic Table

What are the 3 particles that make-up the atom?

• protons, neutrons, and isotopes
• neutrons, isotopes, and electrons
• positives, negatives, and electrons
• protons, neutrons, and electrons

All matter is made of what?

• energy 
• atoms 
• electrons 
• compounds 

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

• nucleus

• electron cloud

• core

• center

Each protons has a _______________ electrical charge

• Positive

• Negative

• Neutral

• Shocking

Each neutron has an electrically_________________charge

• Positive

• Negative

• Neutral

• Shocking

Each electron has a _________________ electrical charge

• Positive

• Negative

• Neutral

• Shocking

Electrons move around_________________the nucleus

• Inside

• Outside

• On top of

• Without

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

• 14
• 7
• 15
• 18

The atomic number tells you what?

• number of electrons
• number of protons
• number of neutrons
• both electrons and protons in an atom.

The atomic number of Lithium is

• 3
• 4
• 5
• 6