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The number of electrons in the outermost...

The number of electrons in the outermost shell of alkali metals is ______

A

1

B

2

C

3

D

7

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The correct Answer is:
A
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TARGET PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS -Chapter Assessment
  1. The number of electrons in the outermost shell of alkali metals is

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  2. The formula of chloride of metal M is MCI. The metal M belongs to .

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  3. Suresh identifies three nonmetals with same valency using modern perio...

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  4. Electron capacity of N shell is .

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  5. Identify the odd one out justify. Si, Ge, As, Ga

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  6. Name the following. The family name of the group 17 elements.

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  7. True or false. If false, write the correct sentence. Calcium reacts ...

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  8. Match the following elements given in Column 'A' with its position in ...

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  9. Give scientific reasons : Elements belonging to the same group have...

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  10. Give scientific reasons : Atomic radius goes on increasing down a g...

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  11. What are the demerits of Mendeleev's periodic table?

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  12. Atomic size of carbon is less than that of boron. Explain the statemen...

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  13. A' and 'B' are atoms of two elements belonging to period 2. 'A' is in ...

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  14. The atomic masses of three elements A, B and C having similar chemical...

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  15. Select the appropriate options and complete the following paragraph. ...

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  16. A part of periodic table is shown in the adjacent figure. a. Write ...

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  17. Mendeleev predicted the existence of certain elements not know at that...

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