An arrangement of all the known elements in order of their atomic number.

• Periodic Table

• Period

• Group

• Atomic Radii

Horizontal rows on the Periodic Table of Elements (side to side)

• Periodic Table

• Period

• Group

• Atomic Radii

The size of an atom, from the center to the outermost part.

• Periodic Table

• Period

• Group

• Atomic Radii

A vertical column is called...

• group
• tower
• period
• crew

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The smallest particle that has the properties of an element.

A substance that cannot be separated physically or chemically any further.

Two or more atoms held together by a chemical bond.

Tags

NGSS.MS-PS1-1

Material that is made up of only one type of matter.

• mixture

• solution

• pure substance

• matter

What is this element's Atomic Name?

• Potassium

• K

• 39.098

• 19

What is this element's Atomic Number?

• Potassium

• K

• 39.098

• 19

Tags

NGSS.MS-PS1-1