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

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

• positive
• negative
• neutral
• polyatomic

If an element has 3 valence electrons, what charge will likely form on its ion ?  Hint:  It will lose those electrons.  What happens to the charge when it loses 3 electrons?

• +3
• +5
• -3
• -5

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Nitrogen will ____ valence electrons when forming an ionic bond.

• gain 1
• lose 1
• gain 3
• lose 3

Tags

NGSS.HS-PS1-2

A chemical symbol that is surrounded by dots that represent elements is a....

• electron dot diagram
• valence electrons
• Bohr Model

Tags

NGSS.HS-PS1-1

A model of an atom that shows all of the electrons in their energy levels (shells) is called 

• electron dot diagram
• valence electrons
• Bohr Model

Tags

NGSS.MS-PS1-1

This is the force of attraction that holds atoms together 

• force of the universe
• gluey bond
• chemical bond

Tags

NGSS.HS-PS1-3

NGSS.HS-PS1-4

Ionic bonds form between two ions that have 

• ionic compounds
• negative charges
• positive charges
• opposite charges 

The force of attraction between two oppositely charged ions

• ionic bond
• strong force
• positive/negative force

Tags

NGSS.HS-PS2-4