The number of protons in the nucleus will ALWAYS be the same for a specific element.
(ex: Hydrogen always has EXACTLY 1 proton)
But, the number of electons and neutrons can vary in a particular element.
Protons determine the identity of an element because each element has a unique number of protons in its nucleus, known as its atomic number. The atomic number determines the element's chemical properties and its place on the periodic table. Electrons also play a role in identity by determining the element's reactivity and bonding behavior.
The chemical reactivity of alkali metals increase when the atomic number increase.
This is the particle in an orbital in the space around the atoms nucleus and it is called an electron.
This atomic particle is the neutron.
A neutral atomic particle is called a proton. This is taught in science.
The main negatively charged particle in an atom is the electron. The electron controls the reactivity of an element. An even smaller particle is a quark, which composes protons and neutrons. Quarks can be either positively or negatively charged.
Protons determine the identity of an element because each element has a unique number of protons in its nucleus, known as its atomic number. The atomic number determines the element's chemical properties and its place on the periodic table. Electrons also play a role in identity by determining the element's reactivity and bonding behavior.
The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.
The reactivity of halogens decreases with increasing atomic number.
This atomic particle is the neutron.
The chemical reactivity of alkali metals increase when the atomic number increase.
This particle is the proton.
This is the particle in an orbital in the space around the atoms nucleus and it is called an electron.
This atomic particle is the neutron.
A neutral atomic particle is called a proton. This is taught in science.
Electrons are the atomic particles found in the orbitals or energy levels outside the nucleus of an atom. Electrons have a negative charge and are involved in chemical bonding and determining an element's reactivity.
In the atomic nucleus this particle is the neutron.