Question

Which of the following is the more non-metallic element from the elements 'X' and 'Y' having electronic configurations 2, 8, 5 and 2, 8, 6 respectively ?
A. X
B. Y
C. Both have same non-metallic character
D. None of the above

Answer 1

The degree of reactivity of a metal is defined by its metallic character. The ability to accept electrons during chemical reactions is referred to as non-metallic character. As you go down the group, you'll see a greater inclination toward metal. When you move around the periodic table from left to right, the non-metallic tendency increases.

Complete Step by Step Answer:
The degree of reactivity of a metal is defined by its metallic character. The ability to accept electrons during chemical reactions is referred to as non-metallic character. As you go down the group, you'll see a greater inclination toward metal. When you move around the periodic table from left to right, the non-metallic tendency increases.

Element X = 2, 8, 5
Atomic Number = 15
Element X = Phosphorous

Element Y = 2, 8, 6
Atomic Number = 16
Element Y = Sulphur

Since, Phosphorus and Sulphur are in the same period when you move around the periodic table from left to right, the non-metallic tendency increases.
Hence, Sulphur has a higher non-metallic tendency.

Note: Phosphorus is a chemical element of atomic number 15 and the symbol P. Phosphorus occurs in two main forms: white phosphorus and red phosphorus, but it is never present as a free product on Earth due to its high reactivity. Sulphur is a chemical element with the atomic number 16 and the symbol S. It's non-metallic, plentiful, and multivalent. Sulphur atoms form cyclic octatomic molecules under natural conditions.