Scientists discover two new elements, element a and element x, and are able to determine their atomic mass. element a has an atomic mass of 17 amu. element x has an atomic mass of 76 amu. these elements combine to form a compound with the following formula: a2x3. determine the molar mass of this compound.
a.93 g/mol
b.98 g/mol
c.110 g/mol
d.245 g/mol
e.262 g/mol

these nuts

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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