The sBlock Elements - Result Question 37

####43. Which of the following atoms will have the smallest size?

(a) Mg

(c) Be

(b) Na

(d) Li

[1989]

Topic 4: Some Important Compounds of Calcium

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Solution:

  1. (c) Within a period, the atomic size decreases from left to right.Further atomic size increases down the group. Hence the correct order is

 i.e. Na>Mg>Li>Be



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