They formed early in the big bang before matter and energy decoupled.
Atomic nucleus is formed from protons and neutrons.
A chemical atom contain protons and neutrons (in the nucleus) and electrons; protons and neutrons are formed from quarks.
A chemical atom contain protons and neutrons (in the nucleus) and electrons; protons and neutrons are formed from quarks.
Atom is formed of electrons, protons and neutrons.
The atomic nucleus contain protons and neutrons; protons and neutrons are formed from quarks and gluons.
The three subatomic particles found in an atom are the Protons, Neutrons, and Electrons. But the subatomic particles found in the nucleus of an atom are the Protons, and Neutrons. The Electrons surround the nucleus and take up most of the volume.
Protons are positive, neutrons are neutral, electrons are negative; protons are formed from quarks and gluons.
The process when protons and neutrons react during nuclear fusion is called nucleosynthesis. This is the process by which new atomic nuclei are formed from existing protons and neutrons.
When a neutron star is formed, protons and electrons are crushed, they collide and become neutrons.
nucleus....contains protons & neutrons
Elements are formed from atoms. Atoms are formed of protons, neutrons, and electrons (sub-atomic particles).
For example protons and neutrons are formed from quarks and gluons.