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An element of atomic mass 40 has 2,8,8,2...

An element of atomic mass `40` has `2,8,8,2`, as the electronic configuration. One of the following statement regarding this elements is not correct?

A

It belongs to II group of the periodic table

B

It has 20 neutrons

C

The formula of its oxide is `MO_2`

D

It belongs to 4th period of the periodic table

Text Solution

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The correct Answer is:
C
Its valency is 2. So it will form MO type compound.
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  3. An element of atomic mass 40 has 2,8,8,2, as the electronic configurat...

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  5. the maximum valency of an element with atomic number 7 is

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  6. Which of the following elements shows maximum number of different oxid...

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  7. Which of the following element is found in its native state:-

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  8. Which one of the elements with the following outer orbital configurati...

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  9. Acidity of pentoxides in VA group

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  10. Which of the following elements show maximum valency ?

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  11. The correct order of increasing oxidising power

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  12. In any period, the valency of an element with respect to oxygen

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  15. Fluorine is the best oxidising agent because it has

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