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प्रश्न
Complete the statement given below by filling in the blanks with the correct words.
From the elements – He, Br, Pt and O; the element which forms a polyatomic molecule is ________ and which is liquid at room temperature is ________.
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उत्तर
From the elements – He, Br, Pt and O; the element which forms a polyatomic molecule is O and which is liquid at room temperature is Br.
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संबंधित प्रश्न
Give the symbol of the following element:
Fluorine
Give the symbol of the following element:
Sulphur [sulphide]
Give the symbol of the following element:
Iodine
Give three reasons why – carbon dioxide is considered a compound, while carbon – an element.
Write the radical of the following valency:
Oxygen
Write the chemical formula of the following:
calcium carbonate
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).
Bromide
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).
Plumbite
Give the qualitative and quantitative meaning of the term ‘symbol’.
Name the elements with the following symbols.
- Na
- W
- Ba
- Al
- U
