Formation of Ions

Elements on the LEFT side of the periodic table will most likely form:

• Positive ions

• Negative ions

• Neutral Ions

• None of these

Tags

NGSS.MS-PS1-1

Cations are...

• Positive

• Negative

• Neutral

• Purring

Tags

NGSS.MS-PS1-5

An atom becomes _________ when it gains electrons.

• Positive

• Negative

• Neutral

• Invinsible

An atom becomes _______ when it loses electrons.

• Positive

• Negative

• Neutral

• Invinsible

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Identify the ion based on the loss or gain of electrons.

a

b

lost electrons - positive charge (+)

gained electrons - negative charge (-)

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Which of the following elements is most likely to form an anion? (Hint- non-metal)

• Magnesium

• Aluminium

• Fluorine

• Calcium

What is the charge of an anion?

• Positive

• Negative

• Neutral

• Variable

How many electrons does a chloride ion (Cl⁻) have?

• 16

• 17

• 18

• 19

Which of the following elements is most likely to form a cation? (Clue - metal)

• Oxygen

• Chlorine

• Sodium

• Sulphur

What is the charge of a cation?

• Positive

• Negative

• Neutral

• Variable