6. A volcanic eruption covers a wide area of forest
with ash, lava, and volcanic rock. Which of these
describes the first stage of ecological succession that
will begin to return biotic factors back to the forest
community and return it to a state of equilibrium?
A. The volcano stops erupting.
B. The lava cools to form rock.
C. Lichens grow on the rocks.
D. The rocks melt back into lava.

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.