Blood type (or blood group) is determined, in part, by the ABO blood group antigens present on red blood cells. A blood type (also called a blood group) is a classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells (RBCs).lood type (or blood group) is determined, in part, by the ABO blood group antigens present on red blood cells. A blood type (also called a blood group) is a classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells (RBCs).
Ions form electrically neutral compounds because the number of cations (positively charged ions) is equal to the number of anions (negatively charged ions). These ions are held together by strong... Ions form electrically neutral compounds because the number of cations (positively charged ions) is equal to the number of anions (negatively charged ions).
RELATED ARTICLES. Cations (positively-charged ions) and anions (negatively-charged ions) are formed when a metal loses electrons, and a nonmetal gains those electrons. The electrostatic attraction between the positives and negatives brings the particles together and creates an ionic compound, such as sodium chloride. A metal reacts with a nonmetal to form an ionic bond. You can often determine the charge an ion normally has by the elementâs position on the periodic table: The alkali metals (the IA elements) lose a single electron to form a cation with a 1+ charge. The alkaline earth metals (IIA elements) lose two electrons to form a 2+ cation.