Cations

The cation Rb⁺ has

• Had nothing happen to it

• Gained 1 electron

• Lost 1 electron

• Become negative

Which chemical can be used to test for cations? (you may choose more than 1 answer)

• Ammonium hydroxide

• Ammonium nitrate

• Sodium chloride

• Sodium hydroxide

A cation has...

• more protons than electrons

• more electrons than protons

A cation will...

• lose electrons

• gain electrons

Potassium will lose...

• one electron

• two electrons

• three electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Potassium atom becomes a potassium ion and is written as...

• K⁺¹

• K⁺²

• K^-1

• K^-2

Tags

NGSS.HS-PS1-2

What is the charge for a calcium ion?

• -1

• +1

• -2

• +2

When a magnesium atom loses two electrons and becomes an ion the name changes to...

• magnesium atom

• magnesium ion

• magneside ion

What is a cation?

• A positively charged ion

• A negatively charged ion

• A neutral atom

• An atom with more electrons than protons

Which of the following is a common method to identify cations in a solution?

• Flame test

• Litmus test

• pH test

• Boiling point test