Atoms Atoms Atoms

Front

What are the negatively charged particles in an atom?

Back

Electrons are the negatively charged particles in an atom.

Front

How many atoms of Hydrogen are in the compound H2O?

Back

There are 2 atoms of Hydrogen in the compound H2O.

Tags

NGSS.MS-PS1-1

Front

What is the basic building block of matter?

Back

All matter is made of atoms.

Tags

NGSS.MS-PS1-1

Front

What is the subatomic particle that has a positive charge?

Back

Protons are the subatomic particles that have a positive charge.

Front

What charge does a proton have?

Back

A proton has a positive charge.

Front

What is the charge of an electron?

Back

An electron has a negative charge.

Tags

NGSS.MS-PS2-3

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 mass of a neutron compared to a proton?

Back

A neutron has a mass approximately equal to that of a proton.

Front

What is the atomic number of an element?

Back

The atomic number of an element is the number of protons in its nucleus.

Front

What determines the identity of an element?

Back

The number of protons in the nucleus determines the identity of an element.