Chemistry Final Review

Everything is made up of little tiny things called _____

• compounds
• molecules
• atoms
• solids

Tags

NGSS.MS-PS1-1

Which of these is the electron?

• A
• B
• C
• D

Tags

NGSS.MS-PS1-1

B and C are found in the ______ of an atom.

• Energy levels
• Space
• Nucleus
• Outside

Tags

NGSS.MS-PS1-1

How many protons does this atom have?

• 2.5
• 6
• 5
• 10.811

Tags

NGSS.MS-PS1-1

The atomic number tells you what?

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

What charge does an atom have when it GAINS electrons?

• Positive

• Negative

• Neutral

In the modern periodic table elements are arranged by:

• atomic mass
• atomic number
• valence electrons
• number of isotopes

Groups (families) on the periodic table are arranged...

• Vertically (up and down)

• Horizontally (left to right)

• Diagonally from bottom right corner

• Diagonally from top right corner

If an atom loses two electrons what charge will it have?

• + 2
•  - 2
• +1
• -1

If an atom gains one electron what charge will it have?

• -2
• -1
• +1