Chapter 9 "Elements and Chemical Bonds"

Which type of atoms are found in metallic bonds?

• metal atoms

• nonmetal atoms

• salt atoms

• valence atoms

Elements found on the far right of the periodic table in Group 18, are referred to as ____ and are chemically stable.

• metals

• nonmetals

• metalloids

• noble gases

How many dots are shown in the electron dot diagram for calcium, element number 20?

• one

• two

• eight

• twenty

In general, nonmetals are ____.

• good conductors of electricity

• malleable and ductile

• good conductors of heat

• gases at room temperature

Metallic compounds ____.

• are poor conductors of electricity

• dissolve in water

• have low melting points

• can be hammered into sheets

The particles that make up an atom are ____.

• electrons, protons, and nuclei

• elements, protons, and electrons

• protons, neutrons, and nuclei

• protons, neutrons, and electrons

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Dot diagrams are used to represent ____.

• protons

• outer electrons

• atomic mass

• the structure of the nucleus

In the compound, H2O, the electrons in the bonds are unequally shared between oxygen and hydrogen, forming ____.

• cations

• ionic bonds

• nonpolar molecules

• polar bonds

Which type of bond is represented in the diagram?

• covalent bond

• ionic bond

• metallic bond

• electron bond

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Which is true regarding the element neon on the diagram?

• The element has eight valence electrons and is chemically stable.

• The image shows how many electrons will bond with the element.

• The image shows where it is located on the periodic table.

• The groups of dots portray the number of bonds this element can form.

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