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प्रश्न
Write the names of following elements Na, C, Kr, U, Ra, Fe, Co.
उत्तर
| Symbol | Element |
| Na | Sodium |
| C | Carbon |
| Kr | Krypton |
| U | Uranium |
| Ra | Radium |
| Fe | Iron |
| Co | Cobalt |
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संबंधित प्रश्न
Define: Compounds
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.
Hydrogen by ‘H’
State the type of element for the following:
potassium
Give the symbol of the following element:
Chlorine [chloride]
Give the symbol of the following element:
Aluminium
State the type of element for the following:
Chlorine
State the type of element for the following:
Phosphorus
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Copper
write symbol with the variable valency
Which of the following would weigh the highest?
Write a note on Greem symbols.
