The net charge on an atom of a given element changes as __ are added or removed.
The Correct Answer and Explanation is :
The net charge on an atom of a given element changes as electrons are added or removed.
Explanation
Atoms consist of three primary subatomic particles: protons, neutrons, and electrons. Protons are positively charged and reside in the nucleus of the atom, while neutrons are neutral and also located in the nucleus. Electrons, which are negatively charged, orbit the nucleus in various energy levels or shells. In a neutral atom, the number of protons equals the number of electrons, resulting in a net charge of zero.
When electrons are added to an atom, the atom becomes negatively charged, forming an anion. This process can occur through several mechanisms, such as chemical reactions where atoms gain electrons from other atoms or from ionization processes. Conversely, if electrons are removed from an atom, it results in a positive charge, creating a cation. This removal can occur through ionization as well, which often happens in chemical reactions or physical processes that provide sufficient energy to overcome the attraction between the electrons and the nucleus.
The ability of an atom to gain or lose electrons is central to its reactivity and the formation of chemical bonds. For instance, metals tend to lose electrons easily, becoming positively charged ions, while nonmetals typically gain electrons, becoming negatively charged ions. This transfer of electrons is a fundamental aspect of ionic bonding, where oppositely charged ions attract each other, leading to the formation of ionic compounds.
In summary, the net charge of an atom changes with the addition or removal of electrons. This alteration in charge significantly influences an atom’s chemical behavior, its interactions with other atoms, and the types of bonds it can form, thus playing a crucial role in the chemistry of elements.