B- is the answer
Hope this helps
Have a nice day~
All of them are important to identify a mineral and get information from it, but I'd say the least important is cleavage.
Answer:
polypeddite chain I guess
The correct statement is " A single bond, because they overlap orbitals to share one pair of electrons." A fluorine atom is unstable with 7 electrons in its valence shell and so needs one more electron to achieve stability. This is according to the octet rule which states that an atom will gain or lose electrons until there are 8 electrons in its valence shell. So each fluorine donates an electron to form a single pair and the achieves a noble gas configuration.