Ions

How many electrons would a Nitrogen ion gain/lose?

• lose 5

• gain 5

• lose 3

• gain 3

How many electrons would a Calcium ion gain/lose?

• lose 1

• gain 1

• lose 2

• gain 2

What is the ion formed from Sulfur?

• S⁺²

• S^-2

• S⁺⁶

• S^-6

If an atom loses electrons, the charge will be positive.

• true

• false

A Bromine ion gains 1 electron, which of the following is the correct symbol for a Bromine ion?

• Br^-1

• Br⁺¹

• Br⁺⁷

• Br^-7

Why are ions formed?

• To make our lives difficult

• Because atoms want to be stable

• Because atoms have the same number of protons and electrons

• Because atoms gained neutrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which particles change the charge in atoms when ions are formed?

• Protons

• Electrons

• Neutrons

An atom becomes _________ when it gains electrons.

• Positive

• Negative

• Neutral

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

An atom becomes _______ when it loses electrons.

• Positive

• Negative

• Neutral

When an atom loses a valence electron, it becomes a(n) _____________ ion.

• positive

• negative

• neutral