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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)
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उत्तर
(a) K — Valency-1 (C)
(b) Zn — Valency-2 (B)
(c) Al — Valency-3 (A)
(d) Na — Valency-1 (C)
(e) Ca — Valency-2 (B)
संबंधित प्रश्न
Define: Elements-
The scientist who proposed the first letter (or first letter and another letter) of the Latin or English name of
an element as its symbol, was :
How are the elements with variable valency named? Explain with an example.
Give the symbol of the following element:
Sulphur [sulphide]
Write the radical of the following valency:
Zinc
Write the radical of the following valency:
Potassium
Write the chemical formula of the following:
Sodium bromide
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
Fill in the blank with the correct word from the options given below:
A symbol represents a short form of a / an ________.
Write the symbols for the following elements and classify them as solid, liquid and gas. Aluminum, Carbon, Chlorine, Mercury, Hydrogen and Helium
