Which of the following elements is chemically similar to potassium
A) calcium
B) arsenic
C) phosphorus
D) cerium
E) cesium

Question

Quizplus · Accepted Answer

Cesium (Cs) is the element that is most chemically similar to potassium (K). Both elements belong to the alkali metal group of the periodic table, which means they have similar properties, such as being highly reactive and forming alkaline solutions when they react with water. Calcium (Ca) is not chemically similar to potassium as it belongs to a different group on the periodic table. Arsenic (As) and phosphorus (P) belong to the nonmetal group and have very different chemical properties compared to potassium. Cerium (Ce) belongs to the lanthanide series and is not chemically similar to potassium.

Which of the Following Elements Is Chemically Similar to Potassium