Question

An element ‘X’ belongs to third period and group 16 of the Modern periodic table Write the formula of the compound formed when it combines with X and show the

formation of compound​

Answer 1

Answer:

The electronic configuration will be: 2, 8, 6 The valency of element is 2 as it needs only 2 more electrons to attain stable gas configuration. (b) Molecular formula of the compound when it reacts with hydrogen can be calculated by cross multiplication of valencies: Therefore, the compound will be H2X

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Answer 2

Answer:

means

x belongs to what