Question

Which of the following contains atomic number
of only s-block
(A) 55,12,18,53 (B)13,33,54,83
(c)3,20,55,87
(p) 22,33,55,66​

Answer 1

The correct answer is C) On the periodic table, the elements that are considered to be represented are those that are located in groups 1 and 2 on the far left and the final six columns or groups on the far right.

Why they are called S-block elements:

• The Periodic Table's s-block elements are those in which the final electron enters the most outer s-orbital. Only two groups (1 & 2) are found in the s-block of the Periodic Table because the s-orbital can only hold two electrons.

• Because the final electron in the valence shells of alkaline earth metals occupies the s orbital, these elements are known as s-block elements.

Properties of S-block elements:

• They are all made of metal. Their ionization enthalpies are low.

• To create a cation, they shed the outermost electron(s).

• While group 2 elements lose two electrons, group 1 elements only lose one.

• Down the group, metallic elements become more prominent.

• High reactivity prevents them from ever being found pure in nature.

• Reactivity rises as the group gets smaller. S-Block compounds are ionic in nature.

Learn more about the s-block element:

1. What are s block elements explain position of s block elements in periodic table

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2. What are s block elements? how many groups belongs to s block elements​

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Answer 2

Answer:

which of the following atomic number represent the s-book elements