A researcher wants to experiment with an element that reacts like phosphorus (P) but has a greater atomic mass. Which element should the researcher select for the experiment? 1.)Nitrogen (N)
2.)Silicon (Si)
3.)Arsenic (As)
4.)Sulfur (S)

Most likely N or S it might not be safe but that is what experiments do I guess.

Explanation:

the answer correct is 4.

sulfur(s)

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.