A charged atom is called an ion. Atoms are neutral because they have the same numbers of positive and negative charges. By adding or taking away negative charges, atoms can become positive or negative.Know More
Protons and neutrons exist in the nucleus of an atom. Protons have a positive charge, whereas a neutron has no charge. Electrons are negatively charged particles that zoom around the nucleus.
Some elements are electropositive, while others are more electronegative. Atoms like to have a full outer electron shell, so they either try to gain or lose electrons to fill their outer shells. Electropositive elements such as lithium, whose atoms have few electrons in their outer level, will donate them to other atoms. They then become positively charged because they have more protons than electrons. Elements such as oxygen are electronegative and want to take electrons from other atoms, thus gaining a negative charge.Learn more in Atoms & Molecules
The most stable state of an atom is called the ground state. In the ground state, all the electrons are in the lowest energy levels, so their energy cannot be lowered further by moving into other orbitals. This stable state will remain until energy is applied from the outside.Full Answer >
A negatively charged atom is called an anion. An anion forms when an atom gains electrons from another atom. Atoms are generally neutral, but they take on a charge when they gain or lose electrons.Full Answer >
An atom that has gained one or more electrons is called an anion. It is also known as a negative ion. A positive ion, or a cation is one that has lost one or more electrons.Full Answer >
The center of an atom is called the atom's nucleus. This structure is usually composed of protons and neutrons though some atoms of hydrogen have only protons.Full Answer >