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प्रश्न
Select the correct answer from the choice given below to complete the sentence :
An example of a monoatomic molecule is ___________.
विकल्प
hydrogen
helium
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उत्तर
An example of a monoatomic molecule is helium.
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संबंधित प्रश्न
Give one example for the following type of mixtures
solid-solid homogenous mixture.
Define the term: Element
Fill in the blank
The most abundant element in the atmosphere is _______.
Indicate whether the following statement is true or false:
Metals can be polished.
Elements are classified into – Metals – Non-metals – Metalloids – Noble gases. State which of A, B, C, D is a –
1. Metallic element
2. Non-metallic element
3. Metalloid
4. Noble gas.
A: Is non-malleable, non-ductile & a poor conductor of electricity ___________
B: Has lustre, is malleable and ductile & a good conductor of heat ___________
C: Is unreactive and inert and present in traces in the air _________
D: Shows properties of both metals and non-metals ___________
Differentiate between homogenous & heterogeneous mixtures.
Select the correct answer from A, B, C, D & E for the statement given below :
A non-metal that is lustrous.
Select the correct answer from A, B, C, D & E for the statement given below :
A mixture consisting of elements & a compound.
Classify the following as elements and compounds.
Water, Common salt, Sugar, Carbon dioxide, Iodine and Lithium
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 |
