Periodic Table
Atoms!
Name That Element
Name That Element 2
100

This number tells you the number of protons in an atom.

Atomic Number

100

This is the center of the atom.

Nucleus

100

Element number 1

Hydrogen

100
Xe

Xenon

200

This scientists came up with The Periodic Table.

Dmitri Mendeleev

200

This particle has a positive charge.

Proton

200

This element has an atomic mass of 238.

U, Uranium

200

This element is the second Halogen.

Chlorine

300

What are most elements on The Periodic Table? 

Metals
300

This particle has a negative charge.

Electron

300

Zr

Zirconium

300
This element is the third alkali metal.

Potassium

400

Group 18 elements are nonreactive and known as these.

Noble Gases

400

This particle has no charge.

Neutron

400

This element has an atomic number of 42.

Mo, Molybdenum

400

This element has 22 neutrons.

Argon

500

This number is the number of neutrons plus the number of protons.

Atomic Mass

500

This is the current model of the atom we use today.

Quantum Mechanical Model

500

Yb

Ytterbium

500

This element is named after a state.

Californium OR Tennessine