Atoms, Molecules, and Compounds

Front

What charge do electrons have?

Back

Electrons have a negative charge.

Tags

NGSS.MS-PS2-3

Front

How does the mass of an electron compare to protons and neutrons?

Back

The mass of an electron is about 1/2000 of protons and neutrons.

Front

In what pattern do electrons travel around the nucleus of an atom?

Back

Electrons travel in shells around the atom's nucleus.

Front

What are the basic building blocks of matter?

Back

Atoms are the basic building blocks of matter.

Tags

NGSS.MS-PS1-1

Front

What is formed when two or more atoms bond together?

Back

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

Tags

NGSS.MS-PS1-1

Front

What is the smallest unit of an element that retains its properties?

Back

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

Tags

NGSS.MS-PS1-1

Front

What do you call a substance made of two or more different types of atoms bonded together?

Back

A compound is a substance made of two or more different types of atoms bonded together.

Tags

NGSS.MS-PS1-1

Front

What is the nucleus of an atom composed of?

Back

The nucleus of an atom is composed of protons and neutrons.

Tags

NGSS.MS-PS1-1

Front

What is the charge of protons?

Back

Protons have a positive charge.

Front

What is the charge of neutrons?

Back

Neutrons have a neutral charge.