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प्रश्न
______ of some elements are derived from Latin or Greek names of the elements.
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उत्तर
Symbol of some elements are derived from Latin or Greek names of the elements.
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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)
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
K1+ Cl1-
State which element exists in the highest percentage in human body.
Write the radical of the following valency:
Calcium
Give a reason – Magnesium [2, 8, 2] has valency 2+.
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
The pictorial symbol for water given by the alchemists was
Name the elements with the following symbols.
- Na
- W
- Ba
- Al
- U
Mass of one atom of oxygen is
What is the expansion of IUPAC.
