Atoms and Elements

All matter is made up of:

• grams

• atoms

• centimeters

• sugars

Tags

NGSS.MS-PS1-1

An atom is defined as...

• The largest unit of matter

• The smallest unit of matter

• Two or more elements combined

• Something that can be broken down into smaller parts

What particles are in the nucleus of an atom?

• protons and electrons

• only protons

• neutrons and protons

Which subatomic particle has a negative charge?

• nucleus

• neutron

• proton

• electron

Which subatomic particle has a positive charge?

• electron

• neutron

• proton

• orbital

Which subatomic particle has no charge?

• electron

• neutron

• proton

• orbital

Which subatomic particle is found outside the nucleus of an atom?

• proton

• electron

• neutron

What is the atomic number?

• the number of protons

• the number of protons and neutrons

• the number of neutrons

• the number of protons and electrons

How many protons are in an atom of Fluorine?

• 19

• 18.998

• 9

• 28

If the atomic number of an element is 10, how many protons are there?

• 20

• 4

• 10

• 5