This article is about the exonerated physician. For the filmwriter and actor, see Sam Shepard. Samuel Holmes Sam Sheppard, D.O. ((1923-12-29)December 29, 1923 â April 6, 1970(1970-04-06)) was a Bay Village, Ohio neurosurgeon initially convicted for the 1954 murder of his wife, Marilyn Reese Sheppard. The case was highly controversial from the beginning, with extensive and prolonged nationwide media coverage.
A covalent bond is a chemical bond between two nonmetals (two metals cannot covalently bond) in which electrons are shared, while an ionic bond is a chemical bond between a me â¦ tal and a non metal due to the attraction between oppositely charged ions. 13 people found this useful. Blu WikiAnswers. 518,948 Contributions.
Na is a metal, and Cl is a nonmetal, so you have an ionic compound when they form. As for covalent bonds, they take place between two nonmetals ONLY. For example, you have carbon dioxide (later you will learn why you have to put di-in front of oxide).luminium oxide Al2O3 is ionic because of the presence of the metal ion, Al3+ and non-metal ion O2-. Methane CH4 is covalent as all the elements in it are non-metals. It has carbon and hydrogen, both of them are non-metals.