It depends on the atom (i.e Hydrogen), but normally it is protons and neutrons.
The center of an atom is made up of protons and neutrons it's called the nucleus.
The nucleus of an atom is made up of protons and neutrons.
The nucleus of an atom is made of 'Protons' and 'Neutrons'. The nucleus of an atom is then surrounded by 'Electrons'.
The atom is made up of the nucleus (neutrons and protons) and electrons.
An atom comprises an atomic nucleus with orbiting electrons. So the nucleus is smaller than an atom. To phrase it the opposite way, an atom is alwys larger than the nucleus (of the same atom of course!!)
The nucleus is the center of an atom and is made up of protons and neutrons. Electrons freely orbit around the nucleus.
The nucleus is the center of an atom and is made up of protons and neutrons. Electrons freely orbit around the nucleus.
The mass of an atom is concentrated in the nucleus, which is made up of protons and neutrons.
The nucleus is the dense center of an atom made of neutrons and protons surrounded by clouds of electrons.
Protons and neutrons
The nucleus of an atom contains neutrons and protons. Almost all of the mass in an atom is made up from the protons and neutrons in the nucleus. Because the nucleus is only made up of protons and neutrons, it is positively charged. Physicists believe that there is a cluster of Protons and Neutrons within an Atom's nucleus. Friend Premier is quite right. So instead saying inside the nucleus it would be apt to say that nucleus is made up of...
No the center of an atom (nucleus) is made up of both protons and neutrons.