Atomic Number (Z) = Number of protons =Number of electrons. For example, an atom of magnesium contains 12 protons, therefore, its atomic number is 12. All the atoms of a particular element contain same number of protons in their nuclei. Therefore, all the atoms of an element have same atomic number.
The thyroid gland is an organ located in the front of your neck and releases hormones that control your metabolism (the way your body uses energy), breathing, heart rate, nervous system, weight, body temperature, and many other functions in the body.
The thyroid is a butterfly-shaped gland that is about two inches in length. It is located in the front of the neck below the larynx (voice box) and above the clavicles (collarbones). It is made up of two lobes, one on either side of the windpipe.