Ions

What is an ion?

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

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

An atom becomes _________ charged when it gains electrons.

• Positively

• Negatively

• Neutrally

• Infinitely

When an atom loses a valence electron, it becomes a ____________ ion.

• positive
• negative
• neutral
• polyatomic

Negative ions form when atoms _________ valence electrons.

• lose
• gain
• share

What is a positive ion called?

• anion

• cation

• isotope

• covalent

What is a negative ion called?

• anion

• cation

• covalent

• isotope

How many electrons would a calcium atom gain/lose in a reaction, given they have 2 valence electrons?

• lose 1

• gain 1

• lose 2

• gain 2

A bromine atom gains 1 electron to form an ion. Which of the following is the correct symbol for a bromine ion?

• Br^-1

• Br⁺¹

• Br⁺⁷

• Br^-7

If an element has 3 valence electrons, what will the charge on its ions be?

• +3

• +5

• -3

• -5