Question

which element shares similar properties with calcium (ca)? scandium (sc) strontium (sr) potassium (k)

Explanation:

Elements in the same group of the periodic table have similar properties. Calcium (Ca) is in Group 2 (alkaline - earth metals). Strontium (Sr) is also in Group 2. Scandium (Sc) is in Group 3 and Potassium (K) is in Group 1.

Answer:

B. Strontium (Sr)