The masses of protons and neutrons are on the order of 1x10-27 kg. The mass of an electron is on the order of 1x10-30 kg. So protons and neutrons, the particles found in a nucleus, weigh around 1000 times as much as the electrons outside the nucleus. So take helium-4 for example: 2 protons, 2 neutrons, and 2 electrons. Its nucleus is around 2000 times more massive than its two electrons. The term "concentrated" is also worth noting. Atoms are much, much, much bigger than their nuclei. A good analogy I often use for this is that if you put a penny in the middle of Giant's stadium, the atom would be the size of the stadium and the penny would be the size of a nucleus. A more specific example would be that the nucleus of a carbon atom has a radius of around 2x10-15 m, and the radius of a carbon atom is around 8x10-11 m. So the nucleus is 40,000 times smaller than the atom.
Scientists say that most of the mass of an atom is located in the nucleus because the nucleus contains protons and neutrons, which are much heavier than electrons. Protons and neutrons have a mass around 1836 times greater than that of electrons, so their presence in the nucleus contributes significantly to the overall mass of the atom.
Quite simply because the nucleus of an atom consists of two particles, positively charged protons and neutral neutrons. Each is nearly about 1850 X as heavy as an electron. T
The atom is surrounded by a swarm of tiny negatively-charged particles called Electrons, but although there are a great number of these, their collective mass is still nowhere near that of the atom's nucleus.
Because electrons are found orbitting the nucleus andare alot smaller then neutrons and protons, which make up the nucleus.
because an electrons mass is so minute compared to protons and neutrons that the mass is said to be contained in the nucleus
Because the protons and neutrons make up the mass and they are both in the nucleus
The electron is the subatomic particle located farthest from the nucleus of the atom.
Protons and neutrons are the particles that are located in the nucleus of an atom. Electrons are located outside the nucleus in electron shells.
Protons and neutrons are located in the nucleus of the atom. Electrons orbit the nucleus in energy levels.
Protons, neutrons and electrons are located in the atom. The protons and neutrons are located in the atomic nucleus; the electrons are around the nucleus, arranged in shells.
Neutrons are located in the nucleus of the fluorine atom. The nucleus is the central core of the atom that contains protons and neutrons. Electrons orbit around the nucleus in various energy levels.
Protons are located in the nucleus of an atom, which is the central core where most of the atom's mass is concentrated.
Atomic nucleus is located in the center of an atom.
it is located in the nucleus and are positvly charged
The protons and neutrons are located in the nucleus of the atom. The nucleus is located in the center of the atom. The nucleus is surrounded by what is called the electron cloud.
The protons and neutrons are located in the nucleus of the atom. The nucleus is located in the center of the atom. The nucleus is surrounded by what is called the electron cloud.
A neutron is located in the nucleus of an atom.
The most mass of a atom is located in the nucleus, where the protons and the neutrons are located.
Electrons are located in the cloud that surrounds the nucleus of an atom.
Valence electrons are located farthest from the nucleus of the atom.
The electron is the subatomic particle located farthest from the nucleus of the atom.
Protons are found in the nucleus of an atom, along with the neutrons. Electrons orbit the nucleus.
They are located in the nucleus of an atom.