Atoms that have gained or lost electrons are called ions. If an atom gains electrons, it is called an anion; if it loses electrons, it becomes a cation. Through the gain or loss of electrons, atoms are no longer neutral.Continue Reading
When atoms gain electrons, they become negatively charged. Atoms losing electrons become positively charged. In a neutral atom, the number of electrons orbiting the nucleus equals the number of protons in the nucleus of the atom. Protons are the positive particles in an atom, while electrons are the negative ones. A neutral atom has the same number of positive as negative charges. With the positive and negative charges canceling each other out, a neutral atom has no net charge.
With the gain or loss of electrons, the balance of protons and electrons is shifted. Either the atom contains more protons than electrons or more electrons than protons, resulting in the atom gaining a net charge.Learn more about Atoms & Molecules
Charged groups of atoms are ions. Ions consist of one or more atoms that have gained or lost electrons. If the group gains electrons, it has a negative charge, and if it loses electrons, it becomes positive.Full Answer >
Ionic bonds hold atoms together using the electrostatic charge between their positive and negative ions. These ions are formed when electrons are transferred between atoms, the net loss or gain determining if the ion is positive, called a cation, or negative, an anion.Full Answer >
The difference between atoms, ions and isotopes is the number of subatomic particles. An atom is the basic building block of matter, the smallest molecule of an element that exists and that cannot be chemically divided by ordinary means. Each atom is comprised of protons, neutrons and electrons. In ions, the number of electrons differs, and in isotopes, the number of neutrons varies.Full Answer >
Gold nanoparticles are gold atoms in solution that have been created by the process of adding a reducing agent to gold ions. The resulting products have optical and electronic properties that make them useful in a variety of applications, including sensory probes, electronic conductors and therapeutic agents.Full Answer >