A 20.68 gram sample of iron is heated in the presence of excess chlorine. A metal chloride is formed with a mass of 60.05g. Determine the empirical formula of the metal chloride

i'm assuming that the correct answer is indeed the first one/ "a"..

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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~ trueboss72