Ions and Isotopes

What is an isotope?

• Different mass #

• Different # of electrons

• Different number of protons

• Different name

Number of neutrons in Uranium-235

• 146

• 143

• 92

• 235

Number of neutrons in Boron-11

• 5

• 4

• 6

• 92

Determine the charge: An atom losing two electrons

• +3

• 0

• -2

• +2

Determine the charge: An atom losing 6 electrons

• -6

• +6

• 0

Determine the charge: An atom gaining 1 electron

• +

• -

• 0

Determine the charge: An atom gaining 2 electrons

• -2

• +2

• 0

Determine the charge: An atom losing 1 electron

• 0

• -1

• +1

Determine the charge: An atom gaining 4 electrons

• 0

• 4-

• 4+

• 13

• 6

• 7

• 12