This is known as iron-deficiency anemia, the most common type of anemia. Factors that can lower your body's supply of iron include: 1  blood loss (caused by ulcers, some cancers, and other conditions; and, in women, during monthly periods); 2  a diet that doesn't have enough iron in it;3  taking medications that interfere with the ability of the body to absorb iron; blood loss (caused by ulcers, some cancers, and other conditions; and, in women, during monthly periods); 2  a diet that doesn't have enough iron in it; 3  taking medications that interfere with the ability of the body to absorb iron; 4  an increase in the body's need for iron (for instance, in women during pregnancy).
Definition. An anion is an atom or a molecule which is negatively charged, i.e. has more number of electrons than protons. A cation is an atom or a molecule which is positively charged, i.e. has more number of protons than electrons.
Ionic compounds are basically defined in such a way that compounds containing two or more ions are considered alongside electrical attraction. One of the positively charged ions (called cations) and the second is a negative charge (anion).Cations are usually the metal atoms and anions are polyatomic ions or metals (ions with more than one atom).ne of the positively charged ions (called cations) and the second is a negative charge (anion). Cations are usually the metal atoms and anions are polyatomic ions or metals (ions with more than one atom).