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Find and total number of electons presen...

Find and total number of electons present in 1 mol methane.

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1 methane `(CH_(4))` molecule`-=`1 C-atom+4H-atoms
Number of electrons in `1CH_(4)` molecule`=1xx6+4xx1`
=10. therefore, total number of electrons in 1 mol of `CH_(4)=6.022xx10^(23)xx10=6.022xx10^(24)`.
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CHHAYA PUBLICATION-STRUCTURE OF ATOM-WARM UP EXERCISE
  1. identify the relation between the nuclides ""(14)^(30)SI & ""(15)^(31)...

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  2. A cation M^(3+) has 23 electrons. Find the atomic no. of M.

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  3. Find and total number of electons present in 1 mol methane.

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  4. Mass number of an ion with unit negative charge is 37. Number of neutr...

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  5. What are electromagnetic radiations? What is their velocity in vacuum?

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  6. State the principle of formation of electromagnetic radiation.

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  7. What do you mean by electromagnetic spectrum?

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  8. What are microwaves? Why are they used in radars?

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  9. Arrannge the various types of radiations constituting the electromagne...

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  10. Arrange the following radiations in the order of their increasing freq...

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  11. How would you increase the strength of photoelectric current?

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  12. How are the following effected by the increase in intensity of the inc...

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  13. Bonellia feeds with the help of

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  14. What is photoelectric effect?

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  15. What is black body radiation ?

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  16. Out of red and blue light, which one is associated with photons posses...

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  17. Differentiate betweena quantum and a photon.

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  18. Enegy associated with X-rays is higher than that of visible light-expl...

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  19. Mention the property of electromagnetic radiation (wave nature or part...

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  20. Give examples of production of -(i) photons from electrons (ii) electr...

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