#ifndef ATOM_H
#define ATOM_H

template <int Z>   //Z is the atomic number of the element.
class atom {
private:
	int electrons[Z];
	int protons[Z];
public:
	atom() {}

	static int period() {   //which row of the periodic table?
                int p {1};
                for (; Z > 2 * p * p; ++p) {
                }
                return p;
        }
};

#endif