Fill in the blanks to determine the number of protons and electrons in an oxygen ion. (consult the periodic table to determine the number of protons in a neutral oxygen atom.) the o2− ion has protons and electrons. express your answers as integers separated by a comma.

The number of protons and electrons in the given ion are 8, 10 respectively.

Explanation:

Atomic number is defined as the number of protons or electrons that are present in a neutral atom.

Atomic number = number of protons = number of electrons

For the given representation of ion, which is:  

We are given:

Atomic number = Number of protons = 8

Charge on the ion = -2

Number of electrons = Number of protons - charge = 8 - (-2) = 10

Hence, the number of protons and electrons in the given ion are 8, 10 respectively.

explanation:

0.07 g/cm³

1.37 g/cm³

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