Sam is conducting an experiment on plants in which he hypothesized, "If plants grow under green light, then the leaves will change colors." Which of the following is true of his experiment? 1. The color of light is the dependent variable.
2. Sam will be collecting quantitative data.
3. Sam will be collecting qualitative data.
4. The changing color of the leaves is the independent variable.

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.