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.
Temporal arteritis often affects the temporal arteries, which run over the temple areas next to the eye, but can also affect other arteries throughout the body. Temporal arteritis can cause a wide variety of symptoms that may affect the eyes, head, face and body in general.emporal arteritis is a relatively uncommon disorder, but it is the most frequent cause of vasculitis (an inflammation of the blood vessels). Temporal arteritis is also called giant cell arteritis and cranial arteritis.