Unit 10 Molecular Bonds Review

Valence electrons are in the

• inner orbit of electrons.

• nucleus.

• outer orbit of electrons.

What color is the outer orbit of this atom?

• blue

• green

• red

How many valence electrons does this atom have?

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Which atom below is stable?

• 
• 
• 

Tags

NGSS.MS-PS1-1

2 atoms are sharing electrons.  What kind of a bond do they form?

• ionic

• covalent

1 atom is giving its electrons to another atom.  What kind of a bond do they form?

• ionic

• covalent

A sodium atom has 1 valence electron.  What should it do to become stable?

• Give the 1 electron away to another atom.

• Take 7 electrons away from another atom.

• Share electrons with another atom.

A Carbon atom has 4 valence electrons.  What should it do to become stable?

• Give its 4 electrons away to another atom.

• Share its 4 electrons with another atom.

• Take 4 electrons away from another atom.

An oxygen atom has 6 valence electrons.  Which one will it NOT to do become stable?

• Give away 6 electrons to another atom.

• Share 2 electrons with another atom.

• Steal 2 electrons from another atom.

How many valence electrons does Lithium (Li) have?

• 1

• 4

• 3