Ions & Ionic Bonding

Why do ionic bonds form?

• so the number of protons equals the number of electrons
• to fill the outermost energy level
• so an atom can become unstable

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An electron has what kind of charge?

• no charge
• positive 
• negative
• it depends

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An atom that has gained or lost electrons is called ...

• a winner
• an isotope
• an ion
• a loser

Atoms that gain electrons become...

• negatively charged
• positively charged
• remain neutrally charged
• 21

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NGSS.HS-PS1-1

If an aluminum atom has 13 protons (+) and 10 electrons (-), what is it's charge?

• Al³⁺
• Al¹³⁺
• Al¹⁰⁺
• Al^10-

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If an oxygen atom has 8 protons (+) and 10 electrons (-), what is it's charge?

• O^10-
• O⁸⁺
• O^2-
• O¹⁰⁺

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NGSS.MS-PS1-1

The attraction between oppositely charged ions is called a(n) _______________.

• ionic bond
• polyatomic ion

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What type of elements will form an ionic bond?

• Metals + Metals
• Nonmetals + Nonmetals
• Metals + Nonmetals
• None of the above

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NGSS.HS-PS1-1

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What is the name given to the outermost electron(s)?

• outside electrons
• plutonian electrons
• ionic electrons
• valance electrons

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Ionic bonds form because

• Two ions of the same charge are attracted to each other
• Two ions of different charges are attracted to each other
• Two atoms share their electrons
• Two or more atoms share protons