The inertness of the noble gases is due to

Explanation:

Inertiness of the noble gases refers to their lack of reactivity, i.e. the stability provided by a full valence electron shell.

The noble gases are He, Ne, Ar, Kr, Xe, Rd, and, the most recently discovered, Og.

They are located in the last column (18) of the periodic table.

Then, when you do the electron configuration of the noble gases, you find they have the outermost prinicpal energy level full. These are their electron configurations using the abbreviated form:

Being their valence orbitals full, these elements will not be very likely to exchange or share electrons, which is the reason of their inertness.

This does not mean that they do not react at all. Xe and F (the most reactive nonmetal) form some compounds.

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o