Which describes the correct number and types of atoms in this molecular structure? 1. five c, eight h, two o 2. three c, two o, six h 3. two c, two o, nine h 4. four c, eight h, two o

Option (1) is the correct answer.

Explanation:

The given compound is a di-ketone as it contains two molecules of the functional group .

So, in total there are two and two groups but there is one group.

Hence, we can conclude that in total the correct number and types of atoms in this molecular structure are as follows.

Carbon atoms = 5

Oxygen atoms = 2

Hydrogen atoms = 8

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.