Atoms

Mer som dette

welcome to chemistry

Ved Husein Hafsah Bint

Nuclear Physics

Ved ASIF HUQ

Ionic Compounds

Ved Hernan Scott

New Map

Ved Tessa Kindschy

Atoms

Mainly empty space

Simplest is hydrogen

3 isotopes

tritium

Radioactive

1 proton, 1 electron, 2 neutrons

deuterium

1 proton, 1 electron, 1 neutron

protium

1 proton, 1 electron

Isotopes

Many are radioactive

Unstable, decay

Element with largest number f isotopes is tin, with 10

Same proton number; varying numbers of neutrons

shells

Charge clouds

electrons

Negatively charged

Negligible mass

Negatively charge

Nucleus

Minute volume within atom (1/15,000)

nucleons

neutrons

protons

Relative mass = 1

positive charge

Proton number

Element

26 artificial

Heaviest is ununoctium

Atomic number 118

Mass number 294

created in nuclear reactors

radioactive

92 Naturally-occurring

Largest naturally occurring is Uranium

Atomic number 92

Mass number 238

Periodic Table

Atomic number