The reaction of aluminum metal with oxygen gas typically produces the product with the formula a) al2o b) al2o3 c) al3o2 d) alo

The correct answer is

Explanation:

Aluminium is the 13th element of the periodic table with electronic configuration of

This element looses 3 electrons and shows an oxidation state of +3.

Oxygen is the 8th element of the periodic table with electronic configuration

This element will gain 2 electrons and shows an oxidation state of -2.

By criss-cross method, the oxidation state of aluminium and oxygen gets revered and they form the coefficients of the compound.

Hence, the compound formed will have the chemical formula of

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

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the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)