Meningioma; Synonyms: Meningeal tumor: A contrast-enhanced CT scan of the brain, demonstrating the appearance of a meningioma: Specialty: Neurosurgery: Symptoms: None, seizures, dementia, trouble talking, vision problems, one sided weakness: Usual onset: Adults: Types: Grade I, II, III: Risk factors: Ionizing radiation, family history: Diagnostic method
A polar covalent bond shares electrons unequally. Because of this unequal sharing, one end of the molecule is slightly positive, and the other end slightly negative. Edit
This type of bond is called a nonpolar covalent bond. A nonpolar covalent bond is one in which the sharing of bonding electrons is equal. When two atoms involved in a cova1ent bond are not identical (atoms of different. electronegativities) the atom that has higher electronegativity attracts the electrons more.