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Question

An element Y exists as yellow solid, it shows catenation and allotropy? The element Y forms two types of oxides which are also the products of thermal decomposition of ferrous sulphate. These gases are the major cause of air pollution.

Identify element Y and write its electronic configuration.


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Solution

Step-1: Introduction

The linkage into atoms chain of the same element is catenation.

An element that can exhibit in many different form in the alike physical state is allotropy.

The element exist as yellow solid, showing catenation and allotropy is Sulphur (S).

Step-2: Configuration of Sulphur

Sulphur is an element that belongs to period 3 and group 16 with atomic number 16.

Sulphur has 2 electrons in K-shell, 8 electrons in L-shell and 6 electrons in M-shell. So, the electronic configuration of Sulphur is (2, 8, 6).

Final answer

Therefore, the element Y is Sulphur and its electronic configuration is (2, 8, 6).


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