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प्रश्न
Match the non-metallic elements – with their correct symbols. Non-metallic elements are:
| Non-Metallic elements | Symbol |
| (a) Carbon | (1) O |
| (b) Chlorine | (2) I |
| (c) Oxygen | (3) Si |
| (d) Phosphorus | (4) C |
| (e) Hydrogen | (5) Cl |
| (f) Nitrogen | (6) P |
| (g) Iodine | (7) F |
| (h) Bromine | (8) H |
| (i) Fluorine | (9) S |
| (j) Silicon | (10) Br |
| (k) Sulphur | (11) N |
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उत्तर
| Non-Metallic elements | Symbol |
| (a) Carbon | C |
| (b) Chlorine | Cl |
| (c) Oxygen | O |
| (d) Phosphorus | P |
| (e) Hydrogen | H |
| (f) Nitrogen | N |
| (g) Iodine | I |
| (h) Bromine | Br |
| (i) Fluorine | F |
| (j) Silicon | Si |
| (k) Sulphur | S |
संबंधित प्रश्न
A student wants to have 3.011 × 1023 atoms each of magnesium and carbon elements. For this purpose, he will have to weigh :
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of its
Acetate
Give two examples of the following:
Solid + Liquid mixture
Give the symbol of the following element:
Boron
Give the symbol of the following element:
Magnesium
Write the radical of the following valency:
Iodine
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
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).
Sulphate
How many elements are known at present?
What is the expansion of IUPAC.
