Question

6. The atomic numbers of two elements are 12 and 16 respectively. You keep these two elements in the same period of the modern periodic table ? Justify to answer which one these two elements is more electro positive? Why?
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Answer 1

Explanation:

The atomic number of 12 is carbon and 16 is sulfur . and electronic configuration 2.,8.,2 is carbon.

Answer 2

Answer:

Magnesium and sulfur, both from the third period, are the elements in question. Magnesium is more electropositive than Sulphur in nature.

Explanation:

• The atomic number of  Magnesium and Sulfur are 12 and 16 respectively.

• The electronic configuration of Magnesium is  $1s^22s^22p^63s^2$

• The electronic configuration of Sulfur is  $1s^22s^2 2p^63s^23p^4$

• The electron in the outermost shell gives its period number. So both the elements belong to the third period.

Electropositivity, in contrast to electronegativity, is a measure of an element's capacity to donate electrons and so generate positive ions.

• The electropositivity of an element increases as its metallic nature increases.

• As a result, alkali metals, followed by alkaline earth metals, have higher electropositivity than other elements. These metals have relatively low ionization energies.

The electropositivity increases down the  group and decreases along periods(from left to right)

As a result, Magnesium has a higher electropositivity than Sulphur.