Ions

What is an ion?

• A Charged Atom
• A Large Atom
• A Small Atom
• A Cute Atom

An atom becomes _________ when it gains electrons.

• Positive
• Negative
• Neutral
• Invinsible

Cations are...

• Positive
• Negative
• Neutral
• Purring

Anions are...

• Positive
• Negative
• Neutral
• Crying

An atom becomes _______ when it loses electrons.

• Positive
• Negative
• Neutral
• Invinsible

The number of electrons in ₂₀ Ca ²⁺

• 18

• 20

• 22

• 40

The number of electrons in ₈O^2-   is .........

Chorine atom gains 1 electron to become chloride ion

the equation of chloride formation is:

• Cl --> Cl^- + 1e-

• Cl^- + 1e- --> Cl

• Cl + 1e- --> Cl^- 

• Cl + 1 e- --> Cl⁺

calcium atom loses 2electrons to become calcium ion

the equation of calcium formation is:

• Ca --> Ca²⁺ + 2e-

• Ca²⁺+ 2e- --> Ca

• Ca + 2e- --> Ca²⁺

• Ca - --> Ca^2- + 2 e

What type of ions has more electrons than protons?

• cation

• atom

• proton

• anion