Answer :
The elements are;
- Tc is a nonmetal
- Kr is a non metal
- Ca is a metal
- Cl is a nonmetal
What is the periodic table?
Chemical elements are arranged tabularly in the periodic table according to their atomic number, electron configuration, and recurrent chemical characteristics. Scientists and chemists utilize it as a potent tool to comprehend and forecast the behavior of elements and their compounds.
Columns referred to as groups or families and rows referred to as periods make up the periodic table. Because their outer electron configurations are similar, elements in the same group exhibit comparable chemical characteristics.
