Elements and Chemical Bonds

Front

What does a chemical formula represent?

Back

A chemical formula provides the chemical makeup of a compound.

Tags

NGSS.MS-PS1-1

Front

What state are most covalent compounds in at room temperature?

Back

Most covalent compounds are gases or liquids at room temperature.

Front

What are the small numbers below chemical symbols in a formula called?

Back

They are called subscripts.

Front

How many valence electrons does carbon have?

Back

Carbon has 4 valence electrons.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

What is a common property of nonmetals?

Back

Nonmetals are poor conductors of electricity.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements chemically bond together.

Tags

NGSS.MS-PS1-1

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

What is electronegativity?

Back

Electronegativity is the ability of an atom to attract electrons in a chemical bond.