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प्रश्न
Give the symbol of the following element:
Silicon
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उत्तर
| Name | Symbol |
| Silicon | Si |
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संबंधित प्रश्न
Give a reason why elements are tabulated in a table called the ‘Periodic table’.
Give the symbol and the number of atoms of the following elements present in sodium chloride.
Give the symbol and the number of atoms of the following elements present in zinc chloride.
Match the symbols of – radicals – with their correct combining power or capacity, (valency).
(a) OH
(b) So4
(c) No3
(d) Co3
Combining power or capacity – A : 3; B : 2; C : 1. (negative valencies)
State the type of element for the following:
Chlorine
Write the radical of the following valency:
Iodine
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
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Iron
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).
Zincate
What does the symbol '(l)' present in a chemical equation, mean?
