Ions

How many electrons in the ion Na¹⁺?

• 1

• 12

• 10

• 23

How many electrons in the ion Se^2-?

• 32

• 79

• 34

• 36

How many electrons in the ion Ag¹⁺?

• 47

• 48

• 46

• 49

Metals form what type of ions?

• cations

• anions

• It's impossible to know

• both cations and anions

Cations are

• negative ions

• positive ions

• non-metal ions

• ions with whiskers

Anions are

• negative ions

• positive ions

• neutral ions

• ions with bad breath

If an atom gains electrons it will have a _ charge.

• positive

• negative

• neutral

• balanced

If an atom of nitrogen gains 3 electrons it will form an ion with what charge?

• +3

• -3

• +7

• -10

A lithium atom will will lose one electron. What will be it's charge?

• -1

• +2

• -10

• +1

How many protons does a magnesium atom have?

• 10

• 12

• 24

• 18