Chemical Equations

Front

What are the horizontal rows in the periodic table called?

Back

Periods.

Front

In the chemical formula 4NH₃, what does the '3' represent?

Back

Subscript.

Tags

NGSS.MS-PS1-1

Front

What charge do electrons carry?

Back

Negative.

Front

What is the smallest unit of matter?

Back

Atom.

Tags

NGSS.MS-PS1-1

Front

What charge do protons carry?

Back

Positive.

Front

What is the term for a positively charged particle in an atom?

Back

Proton.

Front

What is the term for a neutrally charged particle in an atom?

Back

Neutron.

Front

What is the term for a negatively charged particle in an atom?

Back

Electron.

Front

What is the basic unit of a chemical element?

Back

Atom.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Front

What do we call a substance made of two or more different types of atoms?

Back

Compound.

Tags

NGSS.MS-PS1-1