Post-thyroidectomy, a person develops muscle spasms, increased deep tendon reflexes, and laryngeal spasm. the most likely cause of these findings is:

The answer is calcium deficit due to reduced parathyroid hormone (PTH).

Thyroidectomy is a procedure in which the thyroid is removed. By removing the thyroid,  the parathyroid can also come with it. Without the parathyroid the person has no parathyroid hormone to regulate the calcium in the blood, and low calcium levels cause muscle spasms.

The proton has a positive charge while the neutron has no charge they both make up the nucleus of the atom while the elections have a negative charge and surround the nucleus of the atom. the protons and electrons are used to calculate the atom's mass whereas the neutrons don't affect the mass