AP Chem Topic 2.1 Types of Chemical Bonds

What elements generally make an ionic bond?

• metal and nonmetal
• 2 or more nonmetals
• metal
• none of the above

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What elements generally make a covalent bond?

• metal and nonmetal
• 2 or more nonmetals
• metal
• none of the above

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NGSS.HS-PS1-1

In chemical compounds, covalent bonds form when

• the electronegativity difference between two atoms is very large.
• electrons are completely transferred between two metals.
• pairs of electrons are shared between two nonmetal atoms.
• two nonmetal atoms are attracted to each other by opposite charges.

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NGSS.HS-PS1-1

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An ionic bond forms when 

• Valence electrons are shared
• a sea of mobile electrons surround the cations
• valence electrons are transferred between atoms
• none of the above

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NGSS.HS-PS1-2

Predict the bond that will form between Be and F.

• Ionic
• Covalent

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Predict the bond that will form between Se and Cl.

• Ionic
• Covalent

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NGSS.HS-PS1-1

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Predict the bond that will form between Sr and S.

• Ionic
• Covalent

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NGSS.HS-PS1-1

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What is a valence electron?

• an electron that is found in the outermost shell of an atom. 
• an electron found in the innermost shell of an atom.
• an electron found in the middle shell.

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NGSS.HS-PS1-1

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What is the number of valence electrons for Oxygen?

• 8
• 6
• 2
• 1

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NGSS.HS-PS1-1

What is the number of valence electrons for Beryillum?

• 1
• 4
• 2
• 7

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NGSS.HS-PS1-1