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An element has an isotope with mass numb...

An element has an isotope with mass number 14. it contains 8 neutrons. Identify the element.

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Mass number=No. of protons+No. of neutrons.
`therefore`Number of protons=14-8=16
`therefore`The atomic number of the element=6, which means, the element is 'Carbon'.
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CHHAYA PUBLICATION-STRUCTURE OF ATOM-WARM UP EXERCISE
  1. What is the relation between Cl^(-) and S^(2-) ?

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  2. Identify the isotopes and isobars from the following list of atoms wit...

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  3. An element has an isotope with mass number 14. it contains 8 neutrons....

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  4. identify the relation between the nuclides ""(14)^(30)SI & ""(15)^(31)...

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

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

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

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

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  9. State the principle of formation of electromagnetic radiation.

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  10. What do you mean by electromagnetic spectrum?

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

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

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

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

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

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  16. Bonellia feeds with the help of

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  17. What is photoelectric effect?

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  18. What is black body radiation ?

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

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  20. Differentiate betweena quantum and a photon.

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