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प्रश्न
The English name of an element is potassium, its Latin name will be :
पर्याय
plumbum
cuprum
kalium
natrium
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उत्तर
kalium
The Latin name of the element potassium is kalium. Hence, the symbol for potassium is K.
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संबंधित प्रश्न
Give two examples of the following :
Solid + Solid mixture
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of it
Phosphate
Explain the terms ‘chemical formula’.
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)
Match the symbols of non-metallic elements with their correct combining power or capacity.
(a) O
(b) S
(c) Cl
Combining power or capacity A : 3; B : 2; C : 1. (negative valencies)
State the type of element for the following:
Sodium
Write the chemical formula of the following:
magnesium oxide
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
Which letter is never used in any element symbol?
