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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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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Predict the bond that will form between Be and F.

• Ionic
• Covalent

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A chemical bond between oppositely charged ions.

• compound
• ion
• covalent bond
• ionic bond

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What type of bond will conduct electricity in a dissolved state?

• ionic

• covalent

What is the basis of a metallic bond?

• the attraction of neutral metal atoms.
• the attraction between protons and neutrons.
• the attraction between positive metal ions and interlocking electrons.
• the attraction between positive metal ions and free floating electrons.

Electrons that are free to move in metals

• delocalized electrons
• oxidation number
• chemical bond
• salts

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Why do metals have high melting points?

• They don't
• The negatively charged electrons act as a glue to hold the positively charged ions together.
• All the electrons become delocalised

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Which of these would be covalently bonded?

• Sodium, Na and potassium, K

• Magnesium, Mg and oxygen, O

• Fluorine, F and chlorine, Cl

• Helium, He and argon, Ar

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