Metals
Non-metals
Noble Gases
The Periodic Table
100

 Iron's atomic number.

What is 26?

100

Hg.

What is mercury?

100

The most common element. 

What is Oxygen? 

100

A column of elements.

What is a group/family?

200

Atomic letters of Nickel.

What is Ni?

200

Bromine's abbreviation.

What is Br?

200

Symbol is H.

What is Hydrogen?

200

A row of elements.

What is periods?

300

Symbol is Na.

What is sodium?

300

A rotten egg smell.

What is Sulfur?

300

Atomic number is 2.

What is Helium?

300

The amount of protons.

What is the Atomic number?

400

Symbol is Fe.

What is Iron?

400

A combination of this and other chemicals is often used in pools. 

What is Chlorine?

400

Atomic symbol is Ne.

What is Neon?

400

The letter(s) that represent an element.

What is Symbol?