Year 9 Science - Formation of Ions

What is an ion?

• A Charged Atom

• A Large Atom

• A Small Atom

• A Cute Atom

Why do atoms gain or lose electrons to form ions?

• To make our lives difficult

• Because atoms are stable with a full outer shell of electrons.

• Because atoms have the same number of protons and electrons

• Because atoms gained neutrons

Which particles are added or removed when ions are formed?

• Protons

• Electrons

• Neutrons

• Kittens

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

Sodium atoms lose one electron. The ion of sodium has a charge of _______

• +1

• +2

• -1

• -2

Lithium atoms lose one electron. The ion of lithium has a charge of _______

• +2

• +1

• -1

• -2

Potassium atoms have one electron in their outer shell. When they lose this electron they become:

• K⁺ ions

• K^- ions

• K²⁺ ions

• K^2- ions