1.4 Chemical Bonding

Which of the following best describes ions?

• Atoms that have a neutral charge

• Atoms of the same element with a different number neutrons

• Atoms that have a different mass

• Atoms that have lost or gained electrons

A theory that states atoms tend to combine in such a way that they each have 8 electrons in their valence shell is known as

• The Atomic Theory

• The Octet Rule

• The Valence Electron Rule

• The Law of Conservation of Mass

Circle the valence electrons on the atom.

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Chemical bonds occur when two or more atoms combine to become (a)   .

Which type of bond occurs between a metal and nonmetal?

• Ionic Bond

• Polar Covalent Bond

• Nonpolar Covalent Bond

• Metallic Bond

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Which of the following best describes a covalent bond?

• Covalent bonds exist between metals and nonmetals.

• In covalent bonding, atoms are held together by a sea of valence electrons.

• Covalent bonds occur between atoms that share electrons.

• In covalent bonding, one atoms transfers electrons to another atom.

Which of the following has a full valence shell?

• oxygen

• helium

• barium

• carbon

In a metallic bond, positively charged metal ions are held together by a sea of (a)   .

Which type of bond is shown in the image? Explain your answer.

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NGSS.HS-PS1-1

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Which of the following is involved in the bonding of atoms?

• protons

• neutrons

• electrons

• valence electrons

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