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Lewis Dot Structure

50.What shoul...

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50.What should be the order of 2nd and 3rd period elements of electron affinity with reason

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Q. The electron affinity of 4th-period elements is less than that of 3rd-period elements.

Q. Atoms of two elements P and Q have 5 electrons in

2^{n d}

3^{r d}

shell respectively. What will be the atomic numbers of these elements?

Q. Assertion :Electron affinity of 4th period elements is less than that of 3rd period elements. Reason: Fourth period elements are larger than that of third period. Hence, accepting tendency of electrons will be less for fourth period because of large size that is because of addition of new shell.

Q. What is the correct increasing order of electron affinity for the given elements?

[1 mark]

Q. Sudden large jump between the values of 2nd and 3rd IP of an element would be associated with the electronic configuration :

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