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The statement that is not correct for pe...

The statement that is not correct for periodic classification of elements is

A

All lanthanides and actinides belong to group IIIB

B

All inert gases end at p6 configuration

C

Iron, Cobalt and Nickel have same density so they are classed in VIIIB group together

D

There are 12 naturally occurring radioactive elements in the periodic table

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The correct Answer is:
A
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VMC MODULES ENGLISH-PERIODIC PROPERTIES OF ELEMENTS-ENABLE
  1. The statement that is not correct for periodic classification of eleme...

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  2. The cation having the largest size in the periodic table is

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  3. Halogens have been placed in the VII group of the peri- odic table bec...

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  4. Which of the following has largest radius?

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  5. The electronegativity values of C, N , O and F

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  6. In the long form of periodic table elements with low ionisation potent...

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  7. The first ionization energy is smallest for the atom with electronic c...

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  8. For which elements, Newlands' law of octaves is not applicable?

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  9. Elements of I A group give colour in Bunsen burner due to

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  10. The correct order of atomic sizes is

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  11. Which of the following set has the strongest tendency to form anions?

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  12. In the periodic table the trend of density of elements down the group ...

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  13. The following compounds have been arranged in order of their increasin...

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  14. Among the following groups given below, the one where elements can hav...

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  15. The correct order of relative stability of half filled and completely...

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  16. Which of the following has the highest boiling point?

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  17. The decreasing order of the second ionization potentials of K, Ca and ...

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  18. Which group of the long form of the periodic table contains solid, liq...

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  19. Which of the following has least density ?

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  20. The process requiring the absorption of energy is

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  21. In which of the following arrangements, the order is not according to ...

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