Atoms, Molecules, and Elements Study Guide

The word "atom" means...

• matter

• indivisible

• tiny

• all of the above

The element, Sodium has how many protons?

• 11

• 22.990

• 33

• Impossible to know from the information given

Tags

NGSS.MS-PS1-1

What is the atomic mass of potassium?

• 19

• 39.098

• 58.098

• 20

What is the Atomic Number of an element equal to?

• The element's number of neutrons

• The elements number of nuclei

• The element's mass

• The elements number of protons

Tags

NGSS.MS-PS1-1

Iron on Mars is _________________ as iron on Earth.

• lighter

• heavier

• the same

• more red in color

If you combine atoms from two or more elements, you form a ?

• Superelement

• Synthetic element

• compound

• mixture

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Electrons are located in the ...

• nucleus of the atom

• proton of the atom

• shells or levels of the atom

• they are not located in the atom at all

Tags

NGSS.MS-PS1-1

Atoms are mostly made of ...

• groups of protons

• outerspace

• empty space

• nothing

Tags

NGSS.MS-PS1-1

Which of the following subatomic particles has a neutral charge?

• proton

• nucleus

• electron

• neutron

Tags

NGSS.MS-PS1-1

What part of an atom would best help you to identify it using the Periodic Table?

• its number of neutrons

• its number of protons

• its color

• its state of matter

Tags

NGSS.MS-PS1-1