Ions

How many electrons would a Nitrogen ion gain/lose? If it has 5 valence electrons.

• lose 5

• gain 5

• lose 3

• gain 3

What is the charge of an ion that has lost one electron?

• -1
• -2
• +1
• +2

An atom with 2 protons, 3 neutrons, and 4 electrons has a charge of ____.

• +2

• -2

• +3

• 0

Tags

NGSS.MS-PS2-5

If an atom has 3 valence electrons, what charge will its ion have?

• +3

• +5

• -3

• -5

Ions are: 

• atoms that have gained or lost electrons

• atoms with no charge
• atoms that have gained or lost protons

• atoms that have gained or lost neutrons

Tags

NGSS.MS-PS1-5

Na has 1 valence electron. When it forms an ion it will have a charge of _______

• +1

• +2

• -1

• -2

Ca has 2 valence electron. When it forms an ion it will have a charge of _______

• +1

• +2

• -1

• -2

Al has 3 valence electron. When it forms an ion it will have a charge of _______

• +3

• -3

• +2

• -2

P has 5 valence electron. When it forms an ion it will have a charge of _______

• +3

• -3

• +2

• -2

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

S has 6 valence electron. When it forms an ion it will have a charge of _______

• -2

• -1

• +1

• +2