elements easy easy
elements easy
elements medium
elements hard
elements super hard
100

N

Nitrogen

100

H

Hydrogen

100

Au

gold

100

Rn

Radon

100

Kr

Krypton

200

O

Oxygen

200

He

 Helium

200

Br

Bromine

200

Hg

Mercury

200

Cs

Cesium

300

F

Fluorine
300

C

Carbon

300

Ca

calcium

300

Fr

Francium

300

Lv

Livermorium

400

B

Boron

400

Li 

Lithium

400

Si

Silicon

400

As

 Arsenic

400

Ts

Tennessine

500

S

sulfur

500

Cl

Chlorine

500

Ne

neon

500

Pb

Lead

500

Co

Choiken