Q3 of 60 Page 140

The order of decreasing atomic size is:

We know that across the period atomic size decreases. Na has the greatest size in all these elements so it should come first this makes the option (c) and (d) invalid and in option (a) the arrows are wrong.

More from this chapter

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1

Which of the following statement is not a correct statement about the trends when going from left to right across the periods of Periodic Table?

 2

The order of decreasing atomic size is:

 4

The element with atomic number 18 belongs to which group:

 5

The scientist who showed that the atomic number of an element is a more fundamental property than its atomic mass is: