compounds unit review

The properties of the elements that make up a compound are usually very similar to the compound itself.

• True
• False

How many total atoms are represented in the compound?

Na₂CO₃

• 3

• 5

• 6

• 9

An ionic compound forms between a _______ and _______.

• metal and non-metal

• two metals

• two non-metals

Tags

NGSS.MS-PS1-1

Name the ionic compound, CaCO₃

• calcium carbide

• calcium carbon trioxide

• calcium carbon oxide

• calcium carbonate

Valence electrons are the...

• Innermost electrons
• Middle electrons
• Outermost electrons
• Any electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons does carbon have?

• 4

• 5

• 6

• 7

Tags

NGSS.HS-PS1-1

USE THE PERIODIC TABLE

Find the element that has 3 Valence Electrons and 2 energy levels.

• Magnesium - Mg

• Lithium - Li

• Aluminum - Al

• Boron - B

Tags

NGSS.HS-PS1-1

Elements in the same column of the periodic table always have the same # of _______ as one another.

• Protons
• Neutrons
• Electrons
• Valence Electrons

Tags

NGSS.HS-PS1-1

This could be the dot diagram of

• Mg

• Cl

• C

• O

This is a correct dot diagram for carbon (C)

• true

• false

Tags

NGSS.HS-PS1-1