Answer:
<u><em>79.72 Calories</em></u>
Explanation:
AnswU GOT THIS!!!!!!!!!!!!!
Explanation:
A, radium-228. Alpha radiation is essentially just two protons and two neutrons leaving the atom, causing the atomic number to drop by two (since the protons left) and the mass number to drop by four (since two neutrons and protons left).
I choose the option A.
The electron absorbs energy from specific wavelength then moving from a lower energy orbital to a higher energy orbital.