Question

What are all the possible masses of cl2 molecules that are made when two chlorine atoms bond together?

Answer 1

all the possible masses of
`Cl_(2)` molecules that are made when two chlorine atoms bond together are 70,72 and 74

Step-by-step explanation:

Chlorine (Cl) has two most common known isotopes these are as follows

Cl-35 and and Cl-37. It means Cl has two possible masses these are 35 and 37.

all the possible masses of
`Cl_(2)` molecules that are made when two chlorine atoms bond together are as follows

it is possible that both the atom in
`Cl_(2)` are Cl-35 then atomic mass of
`Cl_(2)` will be

35 + 35 = 70

it is possible that both the atom in
`Cl_(2)` are Cl-37 then atomic mass of
`Cl_(2)` will be

37 + 37 = 74

it is possible that
`Cl_(2)` is formed when Cl-37 and Cl-35 are bond together, then atomic mass of
`Cl_(2)` will be

35 + 37 = 72

Answer 2

The masses of the 2 most common isotopes of Cl are 35 and 37. Therefore we can formulate 3 possible masses of Cl2:

35 + 35 = 70
35 + 37 = 72
37 + 37 = 74

However, Cl 35 is the most common isotope of chlorine of the two therefore it is the most probable that two Cl 35 atoms will combine, so 70 is the most common among all.