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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
Give the symbols and valencies of following radicals:
(a) Hydroxide (b) Chloride
(c) Carbonate (d) ammonium
(e) Nitrate
Give a reason why elements are tabulated in a table called the ‘Periodic table’.
Give the symbol of the following element:
Potassium
State the type of element for the following:
Carbon
State the type of element for the following:
Zinc
Give the formula of the following acid:
Sulphuric
Give a reason – Magnesium [2, 8, 2] has valency 2+.
State the valency of the following metallic element and write symbol with the valency
Sodium
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Phosphate
What is meant by the term ‘symbol’?
