Gold

Who discovered gold?

We do not know, it was discovered before there were written record.

Abundance on earth:

4 parts per billion by weight, .4 parts per billion by moles.

Known Isotopes:

35

Isotope name:

Gold-197

Isotope Chemical Symbol:

Big image

Atomic #

79

Atomic Mass:

197

# Protons:

79

# Electrons:

79

# Neutrons:

118

Chemical Equation by alpha decay:

Big image

Chemical Equation by beta decay:

Big image

Chemical Equation by gamma decay:

Big image

Physical properties:

  • Malleable
  • Ductile
  • soft medal

Uses:

  • reflector of heat
  • infra-red radiation

Facts:

  • Gold is an excellent conductor of heat & electricity.
  • Gold is unaffected by air, water, alkalis & all acids except aqua regia which can dissolve water.

Radioactice Decay

A breakdown of an atomic nucleus resulting in the release of energy & matter from the nucleus.
Big image

Citation:

chemicool.com