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प्रश्न
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
Ca2+ NO31-
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उत्तर
Ca2+ NO31-
Steps
Formula = Ca(NO3)2
संबंधित प्रश्न
Define: Elements-
Select elements and compounds from the following list: Iron, plaster of paris, chalk, common salt, copper, aluminium, calcium oxide, cane sugar, carbon, silica, sodium sulphate, uranium, potassium carbonate, silver, carbon dioxide.
What do the following symbol stand for?
2H
Match the metallic elements – with their correct symbols Metallic elements
| Metallic elements | Symbol |
| (a) Potassium | (1) Ca |
| (b) Sodium | (2) Zn |
| (c) Calcium | (3) Pb |
| (d) Magnesium | (4) Hg |
| (e) Zinc | (5) Cu |
| (f) Aluminum | (6) Au |
| (g) Iron | (7) K |
| (h) Lead | (8) Fe |
| (i) Copper | (9) Al |
| (j) Mercury | (10) Na |
| (k) Silver | (11) Mg |
| (l) Platinum | (12) Pt |
| (m) Gold | (13) Ag |
State the type of element for the following:
Lead
State the type of element for the following:
Phosphorus
Write the radical of the following valency:
magnesium
Write the radical of the following valency:
Bromine [Bromide]
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Tin
write symbol with the variable valency
Name three metals whose symbols are derived: from their Latin names.
