Atoms, Molecules, Pure Substances and Mixtures

In the molecule LiBr, how many elements of lithium are in the molecule

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

A unique type of atom is called an:

• molecule

• compound

• element

• matter

In the molecule H₂O, how many elements of hydrogen are in the molecule?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

The symbol for sodium is:

• K

• Na

• S

• So

When atoms join together we make:

• elements

• molecules

• pure substances

• mixtures

Tags

NGSS.MS-PS1-1

The symbol for Carbon is:

• Ca

• Cr

• C

• Cn

The postively charged particles in the nucleus of an atom are the:

• electrons

• isotopes

• protons

• neutrons

In the molecule C₁₂H₂₂O₁₁, How many total elements are in the molecule?

• 1

• 34

• 40

• 45

Tags

NGSS.MS-PS1-1

Revolving around the nucleus of an atom are the:

• protons

• electrons

• neutrons

• isotopes

This shows all the elements:

• Periodic table

• Bar graph table

• chemical table

• recipe