GENERAL KNOWLEDGE

Detailed explanation-1: -When an atom loses an electron, it attains a positive charge since the number of protons become more than the number of electrons. This positive charged species is known as cation.

Detailed explanation-2: -A cation is an ion with positive charge, which means it has more protons (positively-charged particles) than electrons (negatively-charged particles). Cations are formed when an atom loses one or more electrons: the loss of the negatively-charged electron(s) results in an overall positive charge.

Detailed explanation-3: -An atom gets positive charge by losing the negatively charged electrons and is called as cation. Similarly an atom gets negative charge by gaining the electrons.

Detailed explanation-4: -The atom that donates electrons is said to have a positive valency. All metals(and hydrogen) have electrons numbering between 1 and 3 in their valence shells. During chemical combination, they donate their electrons and become positively charged.

Detailed explanation-5: -Metals tend to lose electrons and form positively charged ions called cations. Non-metals tend to gain electrons and form negatively charged ions called anions.