Where $a, b, c, d, e, f, g, h$ are 3rd period elements. If difference between atomic numbers of elements b and e is x and difference between atomic numbers of elements c and f is y. What is the value of x - y.

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Solution

From the curve, it can be predicted that the rise in the IE is due to increasing nuclear charge and stable electronic arrangement. The dip suggest that although nuclear charge is increasing but species are getting stabilised by losing an electron.
a is $_{11} N a$ , b is $_{12} M g$ , c is $_{13} A l$ , d is $_{14} S i$ , e is $_{15} P$ , f is $_{16} S$ , g is $_{17} C l$ , h is $_{18} A r$ ,
x = 15 - 12 = 3,
y = 16 - 13 = 3
x - y = 0

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Where a,b,c,d,e,f,g,h are 3rd period elements. If difference between atomic numbers of elements b and e is x and difference between atomic numbers of elements c and f is y. What is the value of x - y.

Where $a, b, c, d, e, f, g, h$ are 3rd period elements. If difference between atomic numbers of elements b and e is x and difference between atomic numbers of elements c and f is y. What is the value of x - y.