Atoms, Elements, Molecules, Compounds

Front

What is the basic building block of matter?

Back

An atom is the smallest particle that retains the properties of an element.

Tags

NGSS.MS-PS1-1

Front

What type of force between atoms allows them to bond?

Back

Attraction between atoms determines whether they will bond to form a molecule.

Front

What do we call two or more atoms bonded together?

Back

A molecule is formed when two or more atoms bond together.

Tags

NGSS.MS-PS1-1

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements bond together, such as NaCl (table salt).

Tags

NGSS.MS-PS1-1

Front

What is an example of a molecule that is not a compound?

Back

O2 (oxygen gas) is a molecule made of two oxygen atoms but is not a compound.

Tags

NGSS.MS-PS1-1

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms.

Front

What is the smallest unit of a compound?

Back

A molecule is the smallest unit of a compound that retains its chemical properties.

Tags

NGSS.MS-PS1-1

Front

What is the term for a substance made of only one type of atom?

Back

An element is a substance that consists of only one type of atom.

Front

What is the chemical formula for table salt?

Back

NaCl is the chemical formula for table salt, which is a compound.

Tags

NGSS.MS-PS1-1

Front

What do we call a bond formed by the sharing of electrons?

Back

A covalent bond is formed when atoms share electrons.