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प्रश्न
Give the names and symbols of five familiar substances which you think are elements.
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उत्तर
The names of five familiar elements are:
- Oxygen: O
- Iron: Fe
- Gold: Au
- Silver: Ag
- Hydrogen: H
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संबंधित प्रश्न
Write the symbols of helium, silver, krypton, antimony, barium.
Write the names of following elements Na, C, Kr, U, Ra, Fe, Co.
An atom of an element is denoted by a “symbol” Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Helium by ‘He’
Give the symbol of the following element:
Neon
Give the symbol of the following element:
Sodium
State the type of element for the following:
Aluminium
State the most reactive and the least reactive metal from the following – Zn, Ag, Na, Fe, Cu, Pb.
Write the radical of the following valency:
Sulphite
State the valency of the following metallic element and write symbol with the valency
Chromium
In the same way in chemistry, each element is denoted by a ______.
