Things to memorize for chem

1Mm to meter

10^6m

1km to meters?

10^3m

1dm to meter

10^-1m

1cm to meters?

10^-2m

1mm to meters?

10^-3m

1µm

10^-6m

1nm to m

10^-9m

1pm to meters?

10^-12m

1fm to meters

10^-15m

Al

Aluminum

As

Arsenic

Ba

Barium

Bi

Bismuth

Br

Bromine

Ca

Calcium

C

Carbon

Cl

Chlorine

Cr

Chromium

Co

Cobalt

Cu

Copper

F

Fluorine

Au

Gold

H

Hydrogen

I

Iodine

Fe

Iron

Pb

Lead

Mg

Magnesium

Mn

Manganese

Hg

Mercury

Ni

Nickel

N

Nitrogen

O

Oxygen

P

Phosphorus

Pt

Platinum

K

Potassium

Si

Silicon

Ag

Silver

Na

Sodium

S

Sulfur

Sn

Tin

W

Tungsten

Zn

Zinc

Atomic Number (Z)

the number of protons in the nucleus of each atom of an element

Mass number (A)

number of protons + number of neutrons

NH₄⁺

ammonium

OH⁻

hydroxide

CN⁻

cyanide

CO₃²⁻

carbonate

HCO₃⁻

bicarbonate or hydrogen carbonate

PO₄³⁻

phosphate

SO₄²⁻

sulfate

SO₃²⁻

sulfite

NO₃⁻

nitrate

NO₂⁻

nitrite

C₂H₃O₂⁻ or CH₃COO⁻

acetate

lithium charge

Li+

sodium charge

Na+

potassium charge

K+

rubidium charge

Rb+

cesium charge

Cs+