Atoms & Ions

Cations are...

• Positive
• Negative
• Neutral
• Purring

Tags

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

An atom becomes _______ when it loses electrons.

• Positive
• Negative
• Neutral
• Invinsible

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which particles change the charge in atoms when ions are formed?

• Protons
• Electrons
• Neutrons
• Kittens

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

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

An electron has what kind of charge?

• no charge
• positive 
• negative
• it depends

Tags

NGSS.HS-PS2-4

An electron has what kind of charge?

• no charge
• positive 
• negative
• it depends

Tags

NGSS.HS-PS2-4