History
Properties
Elements
Periods and Groups
100

Who found the noble Gases?

Who is sir William Ramsay

100

What changes with every element in the periodic table?

What is atomic number and atomic mass?

100

How many elements are there in the periodic table?

118 Elements

100

What is a period?

What is the highest occupied energy level?

200

Who created the periodic table

Who is Dmitri Mendeleev?

200

What is the law that states that x-rays are emitted by atoms?

What is Moseley's law?

200

What are the state types of elements?

Solids and Gases

200

What is group?

What is the number of electrons on the outermost shell?

300

Who rearranged the Periodic table to make a pattern in the elements?

Who is Henry Moseley?

300

What group combines the best with other atoms?

Group 17

300

What are the main solids in the periodic table?

What are metals?

300

What is in the rows

What are groups?

400

What year was the periodic table created?

1869

400

What are three properties of elements?

Density, Reactivity, Mass etc.
400
How many elements were left undiscovered by Mendeleev?

3

400

What are in the columns?

What are periods?