GENERAL KNOWLEDGE

Detailed explanation-1: -By definition, an ion (positively charged atom or negatively charged atom) is an electrically charged particle produced by either removing electrons from a neutral atom to give a positive ion or adding electrons to a neutral atom to give a negative ion.

Detailed explanation-2: -An atom consists of a positively charged nucleus, surrounded by one or more negatively charged particles called electrons. The positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral.

Detailed explanation-3: -Some particles are positively charged and some are negatively charged. To put it simply, positive ions are molecules that have lost one or more electrons whereas negative ions are actually oxygen atoms with extra-negatively-charged electrons.

Detailed explanation-4: -An anion is an ion with negative charge, meaning it has more electrons than protons. Anions are formed when an atom gains one or more electrons: the gain of the negatively-charged electron(s) results in an overall negative charge.

Detailed explanation-5: -Metal atoms form positive ions when they lose electrons, and nonmetal atoms form negative ions when they gain electrons.