Molecules and Atoms

The number of atoms it would take to make a molecule of water.

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

This compound known as H₂O is more commonly know as what?

• Water

• Carbon dioxide

• Hydrogen peroxide

• Toothpaste

Tags

NGSS.MS-PS1-1

Which TWO of the following below would represent correct Bohr models?

Pay attention to the number of electrons in each shell.

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1

The total number of electrons in a neutral atom of every element is always equal to the atom's ________________________.

• atomic mass number

• number of neutrons

• number of shells

• number of protons

The atomic mass is equal to which two items added together?

• Protons

• Neutrons

• Electrons

• Atom

• Electron Shells

Look at the information on the element box below to answer the following questions.

Atomic Number:___

Tags

NGSS.MS-PS1-1

Look at the information on the element box below to answer the following questions.

Atomic Mass:_____

Look at the information on the element box below to answer the following questions.

Number of Protons:___

Tags

NGSS.MS-PS1-1

Look at the information on the element box below to answer the following questions.

Number of neutrons:____

Tags

NGSS.MS-PS1-1

Elements can be made of a single _____

• subatomic particle

• particle

• atom

• molecule