Q9 of 21 Page 102

Compare all the proposed models of an atom given in this chapter.


The Picture below describes more clearly the difference between different proposed atomic models.





NEILS BOHR MODEL


More from this chapter

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7

Which one of the following is a correct electronic configuration of sodium?

(a) 2,8


(b) 8,2,1


(c) 2,1,8


(d) 2,8,1.

 8

Give the main postulates of Bohr's model of an atom.

 10

Define valency by taking examples of nitrogen and boron.

 11

State the valencies of the following elements : Magnesium and Sodium .