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प्रश्न
Give the symbol of the following element:
Iodine
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उत्तर
| Name | Symbol |
| Iodine | I |
संबंधित प्रश्न
Match the symbols of metallic elements – with their correct combining power or capacity.
(a) K
(b) Zn
(c) Al
(d) Na
(e) Ca
Combining power or capacity – A : 3 ; B : 2 ; C : 1. (positive valencies)
State the type of element for the following:
Calcium
State the type of element for the following:
Sodium
Give the formula of the following acid:
Carbonic
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Mercury
write symbol with the variable valency
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).
Chloride
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).
Iodide
State why the molecular formula of zinc carbonate is ZnCO3 .
The first letter of a symbol is always written as a ______ letter and the second letter as a ______ letter.
How many elements are known at present?
