Periodic Table
Isotopes
Elements
History
Random
100

This is the name for the rows on the periodic table.

What is periods

100

Isotopes have a different number of these.

Neutrons

100

He

Helium

100

Creator of the periodic table.

Mendeleev

100

How many Valence electrons does Oxygen have 

6

200

This is the name of the columns on the periodic table.

What is Groups/Families

200

All isotopes have the same number of these.

Protons/Electrons


200

Mn

Manganese

200

Created the plum pudding model

JJ Thompson

200

How many energy levels does sodium have 

3

300

The name of group 1 elements.

What is Alkali Metals

300

An isotope has 15 protons, 15 electrons, and 17 neutrons. What is number for the isotope

32

300

Kr

Krypton

300

Created the gold foil experiment

Rutherford

300

Atomic mass is made up of what

Protons/Neutrons

400

The name of group 17 elements

What is Halogens

400

Which is the heaviest isotope

C-12

C-13

C-14

C-14

400

Ag

Gold 

400

Who came up with the idea of atoms

Democritus

400

Who created the 2d model view of the atom we use today

Bohr

500

This is the other name for semiconductors.

What are metalloids 

500

True/False

There are 10 electrons in the isotope O-10

False

500

W

Tungsten

500

This guy came up with atomic theory.

John Dalton

500

What is the only liquid metal on the periodic table

Mercury

M
e
n
u