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Answer the following questions: Which ...

Answer the following questions:
Which group elements have seven electrons in the outermost shell?

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NAVNEET PUBLICATION-MEASUREMENT OF MATTER-EXERCISE
  1. Answer the following questions: Explain how the element sodium is mon...

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  2. Answer the following questions in one sentence each : How many electr...

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  3. Answer the following questions: Which group elements have seven elec...

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  4. Answer the following questions: Name three composite radicals with va...

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  5. Answer the following questions: Name two composite radicals with vale...

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  6. How will the compounds, MgCl2 and CaO be formed from their elements?

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  7. Answer the following questions: Name the element with variable valenc...

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  8. Answer the following questions : State the units of heat.

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  9. Answer the following questions: Write a short note on radicals.

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  10. Answer the following questions: Write symbols of the following elemen...

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  11. Answer the following questions: Give examples: Positive ions

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  12. Give two examples. Basic radicals

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  13. Give two examples. Composite radicals

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  14. Give two examples. Metals with variable valency

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  15. Give examples. Bivalent acidic radicals

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  16. Give examples. Trivalent basic radicals

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  17. Give the scientific reasons: The valency of oxygen is 2.

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  18. Give the scientific reasons: The valency of carbon is 4.

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  19. Give the scientific reasons: The valency of neon is zero. Neon is a ...

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  20. Solve the examples Following are atomic masses of a few elements in ...

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