nucleus... if it is still "lithium". Otherwise, it is 3 protons and some neutrons, depending on the isotope of lithium.
The smallest particle of an element is called an atom.
The particle in an atom that cannot change is the number of protons. If that changes, it is no longer the same element.
An ATOM!!!! An atom can be sub-divided in to protons, neutrons, and electrons.
A positively charged particle in an atom is called a proton. It is located in the nucleus of the atom along with neutrons.
A positively charged particle formed from an atom [that has lost electrons] is called a cation.
When a lithium atom reacts with a fluorine atom, the lithium atom loses an electron to form a lithium cation and the fluorine atom gains that electron to form a fluoride anion. This results in the formation of lithium fluoride (LiF), an ionic compound.
This particle is the atom.
This particle is called atom.
The nucleus of a helium atom is called an alpha particle. The electromagnetic waves emitted by a nucleus are called gamma rays.
The basic particle of an element is called an atom. Each atom is made up of protons, neutrons, and electrons.
When lithium loses one electron, it forms a lithium ion with a +1 charge. This ion has the same number of protons (positive charge) as electrons (negative charge) in its nucleus, giving it an overall charge of +1.
The neutral atomic particle of an atom is called a neutron. Neutrons have no charge and are found in the nucleus of an atom along with protons.