Symbol: Au
Atomic Number: 79
Average atomic mass: 196
Number of protons:79
Number of electrons: 79
Origin of element name: The name is an Anglo-Saxon word and the symbol Au comes from the Latin ‘Aurum’ which means silver.
Discovered by: Many Ancient civilizations such as Mesopotamia, the Egyptians, the Greek, and the Romans .
Discovered in the year: 3000 Bc
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Symbol: Ag
Atomic Number: 47
Average atomic mass: 107
Number of protons: 47
Number of electrons: 47
Origin of element name: The name comes from the Anglo-Saxon word ‘silofur’ and the symbol Ag comes from the Latin ‘Argentum’ meaning silver.
Discovered by:Many Ancient Civilizations such as Mesopotamia, the Egyptians, the Greek, and the Romans.
Discovered in the year: 3000 Bc
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Symbol: Pt
Atomic Number: 78
Average atomic mass: 195
Number of protons: 78
Number of electrons: 78
Origin of element name: The name is derived from the Spanish ‘platina’ meaning little silver.
Discovered by: Antonio de Ulloa.
Discovered in the year: 1735
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