Question

A representative element in the fourth period that is an alkaline earth

Answer 1

Answer:

Potassium

Potassium. Potassium (K) is an alkali metal, placed under sodium and over rubidium, and is the first element of period 4. It is one of the most reactive elements in the periodic table, therefore usually only found in compounds.

Answer 2

A representative element in the fourth period that is an alkaline earth is calcium.

Explanation:

Elements of s and p-block are known as representative elements. And, alkaline earth metals are the elements present in group 2 of the periodic table.

For example, elements of alkaline earth metals are beryllium, magnesium, calcium, strontium, barium and radium.

Calcium is the alkaline earth which belongs to group 2 and period 4 of the periodic table.

Learn more about representative elements:

https://brainly.in/question/5115453

https://brainly.in/question/11448841

#Learnwithbrainly