When two atoms bonded by a covalent bond have the same electronegativity the electrons will be equally shared. This is called pure (non-polar) covalent bonding. For example, the chlorine molecule, Cl 2.or example, sodium (a metal) combining with chlorine (a non-metal). Covalent, polar covalent and ionic bonding can be considered as forming a spectrum.As the difference in electronegativity increases the bonds become more polar then ionic. 1  Page. 2  1. 3  2. 4  3.
For the vein, see Superficial temporal vein. In human anatomy, the superficial temporal artery is a major artery of the head. It arises from the external carotid artery when it bifurcates into the superficial temporal artery and maxillary artery. Its pulse is palpable superior to the zygomatic arch, anterior and superior to the tragus.
Definition. Temporal arteritis is inflammation and damage to the blood vessels that supply blood to the head. If the inflammation affects the arteries in your neck, upper body and arms, it is called giant cell arteritis.auses. Temporal, giant cell, and cranial arteritis occur when one or more arteries become inflamed, swollen, and tender. Temporal arteritis commonly occurs in the the arteries around the temples (temporal arteries).