Chemical Bonding

What elements generally make an ionic bond?

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

What elements generally make a covalent bond?

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

Predict the bond that will form between Be and F.

• Ionic
• Covalent

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Predict the bond that will form between Se and Cl

• Ionic
• Covalent

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Ionic bonds happen when valence electrons are

• shared

• too heavy

• transferred

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Valence electrons are

• neutral (no charge)

• found in the outer most energy level of the atom

• always equal to the number of protons

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How many valence electrons does Oxygen have?

• 0

• 16

• 6

• 8

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Typically, atoms are more stable when they are

• bonded together

• apart from each other

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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.

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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