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प्रश्न
State the type of element for the following:
Phosphorus
विकल्प
Metal
Non-metal
Metalloid
Noble gas
उत्तर
Non-metal
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संबंधित प्रश्न
The symbols of the elements cobalt, aluminium, helium and sodium respectively written by a student are as
follows. Which symbol is the correct one ?
Give the symbol and the number of atoms of the following elements present in sodium chloride.
Give the symbol of the following element:
Silicon
State the type of element for the following:
Carbon
Give three reasons why – carbon dioxide is considered a compound, while carbon – an element.
State the valency of the following metallic element and write symbol with the valency
Sodium
State the valency of the following metallic element and write symbol with the valency
Magnesium
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).
Carbonate
Define Alchemy.
Which of the following symbols of elements are incorrect? Give their correct symbols
- Cobalt CO
- Carbon c
- Aluminium AL
- Helium He
- Sodium So
