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प्रश्न
What do you think would be the observation of `alpha` particle scattering experiment if carried out on (i) heavy nucleus like platinum (ii) light nuclei like litheum.
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उत्तर
(i) If the foil of a heavy metal like platinum (having a very heavy nucleus) is used, then the observations in the αα-particle scattering experiment would be the same as that in the gold foil experiment
(ii) If, however, the foil of a right metal like lithium (having a very light nucleus) is used, then the fast moving heavy αα-particles may even push the light nucleus aside and may not be deflected back.
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संबंधित प्रश्न
(i) How many atoms of each kind are present in the following molecules: calcium oxide, chlorine, water, carbon tetrachloride?
(ii) How many electrons are required for their octet structure?
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Name the following:
Metal with valency 2
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Water,
The element that would form anion by gaining electrons in a chemical reaction is ______.
An atom X with atomic number 20 combines with atom Y with atomic number 8. Draw the dot structure for the formation of the molecule XY.
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| 1. | Atomic bond | a. | Oxygen and hydrogen |
| 2. | Atoms with different electronegativities | b. | acceptor bond |
| 3. | An atom that accepts electron pair | c. | covalent bond |
| 4. | Rusting of iron | d. | donor atom |
| 5. | An atom that provides electron pair | e. | oxidation |
| f. | ionic bond |
Choose the odd one out and write the reason:
How many atoms of each kind are present in the following molecule:
water
