proton
you can change the number of neutrons and electrons and still have the same element
The number of the elementary particles, protons, determines the chemical element.
The number of protons, which is the atomic number of an element, determines the identity of an element.
The number of protons.
No. This is a definition of an atom. Electrons are only part of atoms.
If the substance is an element, the smallest will be an atom. If it is a compound, then that would be a molecule.
A substance composed of two or more atoms of the same element is just a pure substance/element, a substance composed of different atoms is called a compound
In the chemical reactivity of atoms electrons are involved.
The electron.
atoms
The number of protons, which is the atomic number of an element, determines the identity of an element.
atoms
An atom is the smallest particle of an element that has the properties of the element.
this is the number of atoms in the molecule of an element
the smallest particle in the element
molecule
The neutron; the proton determines the element of the atom, but different atoms of the same element can have different atomic masses, due to the different number of neutrons of the atoms. Atoms of same element having same number of protons but different number of neutrons are called Isotopes. Thus, neutron determines the isotope of an atom.
These are atoms of an isotope.
to what number the element can count to