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प्रश्न
State the type of element for the following:
Phosphorus
पर्याय
Metal
Non-metal
Metalloid
Noble gas
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उत्तर
Non-metal
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संबंधित प्रश्न
The anion of an element has ______.
Why is the symbol S for sulphur, but Na for sodium and Si for silicon?
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)
Match the formulas of the following gases with their correct names :
Gases - (a) H2 (b) N2 (c) O2 (d) Cl2 (e) HCI (f) NH3 (g) CO (h) CO2 (i) SO2 (j) NO (k) NO2.
Names:
(1) Ammonia (2) Nitrogen Dioxide (3) Oxygen (4) Hydrogen (5) Nitrogen (6) Chlorine (7) Carbon Monoxide (8) Sulphur Dioxide (9) Nitrogen Monoxide (10) Carbon Dioxide (11) Hydrogen Chloride
Give the symbol of the following element:
Oxygen
Give the symbol of the following element:
Zinc
State the type of element for the following:
Oxygen
Write the radical of the following valency:
Sulphate
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).
Aluminate
The symbol of tungsten is _______.
