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Among the elements Ca,Mg,P and Cl the or...

Among the elements Ca,Mg,P and Cl the order of decreasing atomic radii is

A

`Mg lt Ca lt Cl lt P`

B

`Cl lt P lt Mg lt Ca`

C

`P lt Cl lt Ca lt Mg`

D

`Ca lt Mg lt P lt Cl`

Text Solution

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The correct Answer is:
B
In a period, size decreases from left to right.
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ERRORLESS-CLASSFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -PAST YEARS QUESTIONS
  1. The IUPAC symbol for the element with atomic number 119 would be:

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  2. The radii of F,F^(-),O and O^(-2) are in the order of

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  3. Among the elements Ca,Mg,P and Cl the order of decreasing atomic radii...

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  4. Which of the following has the smallest size ?

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  5. Identify the wrong statement in the following ?

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  6. Which of the following orders of ionic radii is correctly represented ...

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  7. Which of the following statement concerning lanthanides elements is fa...

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  8. The species Ar,K^(+) and Ca^(2+) contain the same number of electrons....

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  9. which of the following ions is the smallest in size?

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  10. Among the following which has the highest cation to anion size ratio ...

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  11. Which of the following element has maximum, first ionisation potential...

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  12. Which of the following gaseous atoms has highest value of IE?

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  13. Hydrogen has high ionization energy than alkali metals, due to its:

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  14. The first ionisation potentials (eV) of Be and B respectively are

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  15. Arrange S, P and As in order of increasing ionisation energy.

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  16. Among the following options , the sequence of increasing first ionisat...

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  17. Which of the following has minimum ionisation energy

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  18. Which has the highest second ionisation potenitial?

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  19. Which of the following order of ionisation energy is correct?

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  20. The second ionisation potential of an element M is the energy required...

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