13. Science Application An atom consists of charged particles called electrons and protons.
Each proton has a charge of +1 and each electron has a charge of -1. Remember number of
electrons is equal to number of protons, while answering these questions:
(a) What is the charge on an atom?
(b) What will be the charge on an atom, if it loses an electron?
(c) hat will be the charge on an atom, if it gains an electron?
Answers
Answer:
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.
Unlike protons, electrons can move from atom to atom. If an atom has an equal number of protons and electrons, its net charge is 0. If it gains an extra electron, it becomes negatively charged and is known as an anion. If it loses an electron, it becomes positively charged and is known as a cation.
In ordinary matter, the number of electrons in an atom is the same as the number of protons. The positive and negative charges balance each other. ... An atom that gains or loses an electron becomes an ion. If it gains a negative electron, it becomes a negative ion.