atomic theory

Carbonate

CO3 2-

Sulfate

SO4 2-

Nitrate

NO3-

Hydroxide

OH-

Nitrite

NO2-

Phosphate

PO4 3-

Ammonium

NH4+

Hydrochloride acid

HCl

Sulfúrico acid

H2SO4

Nitric acid

HNO3

-ide

Metal non metal formula

-ate

Metal non metal non metal oxygen

Dalton

Atomic theory

JJ Thompson

Plum pudding model

Ruhterford

Alpha scattering

Bohr

Electrons orbit in shells

Chadwick

Discovered neutrons

Relative charge of proton

+1

Relative mass of proton

1

Relative charge of neutron

0

Relative mass of neutron

1

Relative charge is electron

-1

Relative mass of electron

1/1036 or 0

Atomic number

the number of protons in the nucleus of an atom

Mass number

the sum of the number of neutrons and protons in an atomic nucleus

Relative atomic mass(Ar)

The weighted mean mass of an atom of an element compared with 1/12 of the mass of an atom of carbon-12

Relative isotopic mass

The mass of an atom of an isotope compared with 1/12 of the mass of an atom of carbon-12

Relative molecular mass

The weighted mean mass of a molecule compared with 1/13 of the mass of an atom of carbon-12

Relative formula mass

The weighted mean mass of a formula compared with 1/12 of the mass of carbon-12

Isotopes

Atoms with the same atomic number but different mass number/ atoms with the same number of protons but a different number of neutrons

What are the chemical properties of isotopes determined by

Electron number

What can physical properties of isotopes do

Differ( such as density

How to calculate RAM

Multiply mass number by abundance and add them together then divide by 100