Question

Part A Which of the following groups comprise the s-block of elements? View Available Hint(s) A) groups 3-12 B) group 18 C) groups 13-18 D)groups 1 and 2 ​

Answer 1

Answer:

D)groups 1 and 2 ​

Explanation:

The s-block of elements are made up of those chemical elements we can find in groups 1 and 2 on the periodic table.

A periodic table of element is based on the periodic law which states that "the properties of elements are a periodic function of their atomic number".

In the table;

• elements having the same number of electrons in the outermost shell are placed over one another in vertical columns.
• each resulting vertical column is called a group or family.
• resulting horizontal rows are known as periods.  

The s-block consists of elements in groups 1 and 2 having an outermost ""ns"" shell configuration. They are predominantly metals.

For Option A, groups 3-12 is the D-block

Option B, group 18 is filled with noble gases and it makes up the p-block

Option C, group 13-18 is makes up the p-block too.

So, the s-block is made up group 1 and 2 elements.