7.6B Periodic Table. (8.5D)

Front

What is a compound?

Back

A compound is composed of two or more elements.

Front

How is Selenium classified?

Back

Selenium is classified as a Nonmetal.

Front

Which formulas contain equal numbers of nitrogen atoms?

Back

Formulas I, II, and V contain equal numbers of nitrogen atoms.

Front

What type of element is Iron?

Back

Iron is a Metal.

Front

What type of element is Silicon?

Back

Silicon is a Metalloid.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of chemical elements, organized by their atomic number, electron configuration, and recurring chemical properties.

Front

What are metals?

Back

Metals are elements that are good conductors of heat and electricity, malleable, ductile, and typically have a shiny appearance.

Front

What are nonmetals?

Back

Nonmetals are elements that are poor conductors of heat and electricity, and they can be gases, liquids, or brittle solids.

Front

What are metalloids?

Back

Metalloids are elements that have properties of both metals and nonmetals, and they are semiconductors.

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.