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Which of the following statements about ...

Which of the following statements about an element A whose atomic number is 17 is correct ?

A

The anion it forms is `A^-`

B

It is an electropositive element

C

The electronic configuration of A is 2,8,2

D

All the above

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BEYOND PUBLICATION-CHEMICAL BONDING-EXERCISE
  1. The electronic configuration of Selinium is 2, 8 , 18, 6. Which of us ...

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  2. Which of the following statements about the element X whose atomic num...

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  3. Which of the following statements about an element A whose atomic numb...

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  4. Which of the following statements about an element whose atomic number...

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  5. Which of the following statements is corect about the element which co...

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  6. Valency expresses… total electrons in valence shell of an atom. at...

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  7. Which of the following compounds are covalent ? A) H2 b) Cao c) CHCl3 ...

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  8. Factors effecting the formation of the ionic bond

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  9. Which of the following elements ar electropositive ?a) Sodium b) Potas...

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  10. The following are some statements about the characteristics of covalen...

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  11. What are true about Lewis dot structures of molecules ? Each bond is...

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  12. Sodium atoms and sodium ions

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  13. When sodium reacts with chlorine.

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  14. Metal atoms tend to form

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  15. If the element can lose an electron readily, they are said to be

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  16. Which of the following is the most reactive ?

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  17. An element reacts with oxygen to give a compound with a high melting p...

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  18. How do valence electrons are showed in the lewis structure ?

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  19. The elements with three or less than three electrons in the outer shel...

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  20. How do you write the lewis dot structure for an inert gas ?

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