Anyone plz help?? T^T

D

Explanation:

The exponents equal the number of electrons the element has in either excess or deficit. When you combine the two elements, the electrons will swap, leading to switched numbers.  

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be