Question

Which following pair is not true
Calcium-ca silver-ag gold-au copper-co

Answer 1

Answer:

Among the following pairs, Copper-co is not true.    

Explanation:

• A symbol is characterised as an abbreviation or shorthand sign for the complete name of an element.
• This strategy of naming the substance is called chemical nomenclature.
• And the representation of the substance with the help of a symbol is called Chemical notation.

• J.J Berzelius in the year 1811 suggested a method of elemental representation using the English letters (The first letter of the symbol is always capital and the second one is small always.)

• Calcium-Ca ( two-letter elemental representation)

• Silver-Ag (Symbol derived from Latin name- Argentum)

• gold-Au (Symbol derived from Latin name- Aurum)

• Copper is represented as "Cu" for its Latin name-Cuprum

• Co is the elemental symbol for Cobalt.

Therefore "copper-co" is the incorrect pair.

#SPJ3