Why do atoms form bonds by donating, accepting or sharing electrons with other atoms? A. Bonding gives an atom the same number of electrons as a noble gas.
B. Bonding changes all atoms into ions.
C. Bonding breaks an atom into stable parts.
D. Bonding gives an atom the same number of protons as a noble gas.

An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample? a. naphthalene, a molecular solid with the formula c10h8 b. silica, a network solid held together by covalent bonds with the formula sio2 c. calcium chloride, an ionic compound with the formula cacl2 d. water, an molecular compound with the formula h2o