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प्रश्न
Give the symbol of the following element:
Silicon
उत्तर
| Name | Symbol |
| Silicon | Si |
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संबंधित प्रश्न
An element which can exhibit valencies of 2, 4 and 6 can be :
What do the following symbol stand for?
H
Give the names and symbols of the first twenty elements of the periodic table.
Give the symbol and the number of atoms of the following elements present in sodium chloride.
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 formulas of the following of bases with their correct names.
Bases – (a) NaOH (b) KOH (c) Ca(OH)2 (d) Zn(OH)2
Names – (1) Potassium hydroxide (2) Zinc hydroxide (3) Aluminium hydroxide (4) Calcium hydroxide (5) Sodium hydroxide
Write the chemical formula of the following:
Sodium bromide
State the valency of the following metallic element and write symbol with the valency
Calcium
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).
Nitrate
Symbol of mercury is
