Ions Challenge

Why are ions formed? (Choose all appropriate answers)

• 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

• Because atoms want to achieve noble gas configuration (duplet / octet)

An atom becomes _________ when it GAINS electrons.

• Positive

• Negative

• Neutral

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

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

• positive

• negative

• neutral

What is the charge on the resulting ion when an atom LOSE one electron?

• -1
• -2
• +1
• +2

What is the charge on the resulting ion when an atom GAINS one electron?

• -1
• -2
• +1
• +2

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 ion formed from Sulfur? If it has 6 valence electrons.

• S²⁺

• S^2-

• S⁶⁺

• S^6-

How many electrons would a Calcium ion gain/lose? If it has 2 valence electrons.

• lose 1

• gain 1

• lose 2

• gain 2