Chemistry Terms Quiz

What is the periodic table?

• A chart of the elements, organized by physical and chemical properties of the different types of atoms.

• A list of chemical reactions.

What does the atomic number represent?

• The number of protons in an element.

• The number of neutrons in an element.

What is a metalloid?

• An element with properties in between metals and nonmetals; semiconductors.

• An element that is a noble gas.

What is an inert element?

• An element that rarely reacts with other elements.

• An element that is highly reactive.

What is a metal?

• An element whose valence electrons are loosely bound to the atoms; shiny and good electrical conductor.

• An element that is a noble gas.

What is a nonmetal?

• An element that is not a metal, whose valence electrons are tightly bound to the atoms; often insulators.

• An element that is a good conductor of electricity.

What are transition metals?

• Elements that tend to be solid at room temperature, electrically conductive, shiny, and malleable.

• Elements that are gases at room temperature.

What does the mass number represent?

• The average mass (in AMU) of one atom of an element; approximately equals number of protons plus neutrons.

• The number of protons in an element.

What is an element?

• An atom with a unique number of protons in its nucleus.

• A molecule with multiple atoms.

What is a period on the periodic table?

• Each row on the periodic table.

• Each column on the periodic table.