Chem Bonding

As atoms bond with each other, they

• increase their potential energy, thus creating less-stable arrangements of matter.
• decrease their potential energy, thus creating less-stable arrangements of matter.
• increase their potential energy, thus creating more-stable arrangements of matter.
• decrease their potential energy, thus creating more-stable arrangements of matter.

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An electrical force of attraction between the nuclei and valence electrons of different atoms that holds the pair of atoms together is called a(n)

• dipole.
• Lewis structure.
• chemical bond.
• London force.

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The electrons involved in the formation of a chemical bond are called

• core electrons.
• s electrons.
• Lewis electrons.
• valence electrons.

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Which pair of atoms is most likely to form a covalent bond?

• H and Cl
• Na and Cl
• K and Cl
• Rb and Cl

Which element is most likely to form a covalent bond with sulfur?

• oxygen
• sodium
• iron
• silver

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Which of the following formulas represents an ionic compound?

• K₂S
• H₂O
• CH₄
• NO₂

Which of the following is not an example of a molecule?

• H₂O
• B
• NH₃
• O₂

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Which of the following is an ionic compound?

• CO₂
• CaBr₂
• CH₄
• C₆H₁₂O₆

If two atoms have nearly the same attraction for electrons, the bond is

• nonpolar covalent.
• polar covalent.
• dipole covalent.
• ionic.

If the atoms that share electrons have an unequal attraction for the electrons, the bond is called

• nonpolar covalent.
• polar covalent.
• ionic.
• dipolar covalent.