Science 6: Chemistry

Atomic Symbols

100

C

Carbon

200

H

Hydrogen

300

Cu

Copper

400

Au

Gold

500

Hg

Mercury

Parts of an atom

100

Positive particle that is the same as the atomic number

Proton

200

Negatively charged particle responsible for chemical bonds

Electron

300

Particle with no charge that partially gives the atom weight

Neutron

400

The center of the atom

Nucleus

500

Scientist responsible for our model of electron shells

Niels Bohr

Acid, Base, or salt

100

Lemons, vinegar and tomato

Acid

200

Antacid tablets

Base

300

Soap

Base

400

Chalk

Salt

500

NaCl

Salt

Reactions

100

When a single element is replaced through a reaction

Single replacement

200

When elements are "swapped" creating two new molecules

Double replacement

300

Symbols and numbers used to shorten the name of a compound

chemical formula

400

What a chemical reaction forms

A new compound/molecule

500

H₂CO₃ How many oxygen atoms?

3