Chemistry

Element

100

Hydrogen

H

200

Silicon

Si

300

Iodine

I

400

Indium

In

500

Mercury

Hg

Symbols

100

S

Sulfur

200

Cl

Chlorine

300

K

Potassium

400

Fe

Iron

500

Sn

tin

SI Base Units

100

m

meter

200

Kg

kilogram

300

K

kelvin

400

cd

Candela

500

A

ampere

Metric Units of Length

100

m

meter

200

cm

Centimeter

300

dm

Decimeter

400

nm

nanometer

500

μm

Micrometer

Chemical formula

100

Copper

Cu

200

Atomic Nitrogen

N

300

Nitrogen gas

N₂

400

Calcium Fluoride

CaF₂

500

Calcium ion

Ca²⁺