Use the drop-down menus to answer the questions.

Which subatomic particles are indicated by the orange circles in the diagram?

Which subatomic particles are indicated by the green circles in the diagram?

What element is represented by the atom shown in this diagram?

A circle has 2 yellow balls labeled with negative signs. In the center of the circle are 2 green balls with no labels and 2 orange balls labeled with plus signs.

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

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.