Module 1 Atomic Structure

atomic mass

number of protons plus neutrons

atomic number

number of protons in an atom

aluminum

Al

antimony (stibnium)

Sb

argon

Ar

arsenic

As

barium

Ba

bismuth

Bi

boron

B

bromine

Br

cadmium

Cd

calcium

Ca

carbon

C

cesium

Cs

chlorine

Cl

chromium

Cr

cobalt

Co

copper (cuprum)

Cu

fluorine

F

gold (aurum)

Au

helium

He

hydrogen

H

iodine

I

iron (ferrum)

Fe

lead (plumbum)

Pb

lithium

Li

magnesium

Mg

manganese

Mn

mercury (hydrargyrum)

Hg

neon

Ne

nickel

Ni

nitrogen

N

oxygen

O

phosphorous

P

platinum

Pt

potassium (kalium)

K

radium

Ra

silicon

Si

silver (argentum)

Ag

sodium (natrium)

Na

strontium

Sr

sulfur

S

tin (stannum)

Sn

titatium

Ti

tungsten (wolfram)

W

uranium

U

zinc

Zn

protium

naturally occurring hydrogen ion with an atomic mass of 1, 1 proton/1 electron, no neutrons

deuterium

naturally occurring hydrogen ion with an atomic mass of 2, 1 proton/1 electron/1 neutron

tritium

not naturally occurring hydrogen ion with an atomic mass of 3, 1 proton/1 electron/2 neutrons

cation

occurs when an electron is lost, resulting in a positive charge

anion

occurs when an electron is gained, resulting in a negative charge

naturally occuring diatonic elements

hydrogen
nitrogen
oxygen
fluorine
chlorine
bromine
iodine