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प्रश्न
Select the correct answer from A, B, C, D & E for the statement given below :
A metalloid.
पर्याय
Gunpowder
Iodine
Boron
Helium
Bromine
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उत्तर
A metalloid: Boron
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संबंधित प्रश्न
Give Two Examples for Each of the Following: Non-metals
Mention three gaseous elements and write their molecular formulae
Give reason: Argon is filled in electric bulbs.
Classify substances into pure and impure substances in the form of a chart or tabulation.
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 is metallic is ____, an inert element is ____, forms a triatomic molecule is ____, is liquid at room temperature is_ ___.
Write the names of elements from the following symbol:
Si
Write the names of elements from the following symbol:
Pt
Match the following.
| 1. | Element | Made up of molecules |
| 2. | Compound | Impure substance |
| 3. | Colloid | Settles down on standing |
| 4. | Suspension | Pure substance |
| 5. | Mixture | Made up of atoms |
Higher-Order Thinking questions:
Why is hydrogen considered an element?
Reason out
Elements are called semimetals.
