The school nurse has come to talk to your anatomy class about the growing problem with teenage hypertension. Your teacher asks
your class to consider how to investigate the problem at your school. Your lab group is planning to conduct an investigation to test
the effects of various stimuli on blood pressure. Your lab group considers several possible causes of high blood pressure in teenagers.
Which of these variables is NOT testable?

What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.