Final answer:
The atom involved in providing energy for the heart to beat is oxygen.
Step-by-step explanation:
The atom involved in giving your heart energy to beat is the oxygen atom. Oxygen is transported to the heart through the bloodstream, where it is used in the process of cellular respiration. During cellular respiration, the oxygen atoms in glucose molecules are broken down to release energy that is utilized by the heart and other muscles.
Learn more about The role of oxygen in providing energy for the heart to beat