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प्रश्न
Fill in the blank
The most abundant element in the earth’s crust is _______.
उत्तर
The most abundant element in the earth’s crust is oxygen.
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संबंधित प्रश्न
Give the symbols of: Carbon, calcium, copper, chlorine, cobalt, argon.
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Name - a poisonous gas almost as heavy as air.
Give the name of the radical - SO4
Select the correct answer from the choice given below.
An element which is a poor conductor of heat
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State true of false. If false, give the correct statement.
Two different elements may have similar atoms.
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Match the following.
| Atom | Building block of matter |
| Element | Atoms of different kinds |
| Compound | Atoms of the same kind |
| Molecule | Smallest unit of a substance |
Name the element which is used in toothpaste to strengthen our teeth.
