Valence electron/ions

Valence electrons are: 

• Electrons farthest away from the nucleus
• Electrons closest to the nucleus
• Electrons that just come and go - they don't stay with the atom

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Ions are: 

• atoms with a positive or negative charge
• atoms with no charge
• atoms with ONLY a positive charge
• atoms with ONLY a negative charge

When an atom loses a valence electron, it becomes a(n) _____________ ion.

• positive
• negative
• neutral
• polyatomic

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Negative ions form when atoms _________ valence electrons.

• lose
• gain
• share

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

all matter is made of what 

• energy 
• atoms 
• electrons 
• compounds 

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Barium atoms want to form...

• an anion
• a cation
• an onion
• a cuddly kitten friend

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

An Arsenic atom wants to form...

• An anion
• A cation
• An onion
• A cuddly kitten friend

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Anions are...

• Positive
• Negative
• Neutral
• Crying

An atom becomes _________ when it gains electrons.

• Positive
• Negative
• Neutral
• Invinsible

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

A Radium atom wants...

• One more electron
• One less electron
• Two more electrons
• Two less electrons

Tags

NGSS.HS-PS1-1