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There's no such particle for which that description is accurate for all atoms.
The nucleus of the atom has protons and neutrons in it. How many of each
depends on what element it's an atom of. There are 92 elements found in
nature, and several more that can be created in the laboratory but only last a
short time before their atoms fall apart. Every element has a different number
of protons and neutrons in the nucleus of its atoms. A hydrogen atom has
one proton, period. A uranium atom has 92 protons and around 146 neutrons.
The proton mass is very nearly the same as the neutron mass, so the mass in
the nucleus of all kinds of atoms can be anything from 1 of them to 238 of them.
Protons account for anywhere between 38% to 100% of it in different atoms,
and neutrons make up the rest.
-- In the nucleus of a Hydrogen atom, the proton is 100% of the mass and neutrons are zero.
-- A nucleus of Oxygen has 8 protons always, and can have 8, 9, or 10 neutrons, so for oxygen only, you could say it's about 50-50 protons and neutrons.
-- A nucleus of Calcium has 20 protons, and anywhere from 20 to 28 neutrons.
-- A nucleus of Gold has 79 protons, and 116 to 120 neutrons.
So you can see that there's no single particle that's always somewhere around
half the mass of the nucleus.
Surely you've noticed that I've been completely ignoring the electrons. That's
because it takes almost 1,850 electrons to add up to the mass of one proton
or one neutron. So when you're talking about approximate mass or weight of
an atom, it's perfectly OK to forget about the electrons, since the mass of the
nucleus is almost exactly the mass of the atom.
What else can I help you with?
Which subatomic particle has such a small mass that is not used to calculate the atoms atomic mass?
electron
What is a charged particle that accounts for nearly half the mass of an atom?
The proton.The proton is a particle of the nucleus (a nucleon) of charge +1. Neutrons are nucleons with no charge, are slightly more massive than a proton, and are part of every atomic nucleus except for the simplest, Hydrogen (there are exceptions, of course, in deuterium and tritium, but here we will keep to simple Hydrogen.)Electrons are tiny by comparison, and are not a part of the nucleus. They "orbit" at some distance. They provide the -1 charge to balance the charge of a proton, but they have a very low mass, 1/1836 that of a proton.Except for the atom Hydrogen, where the proton is practically all the mass of the atom, the proton is the charged particle which accounts for nearly half of the mass of any atom.
The mass of a neutron is nearly equal to the mass of what other subatomic particle?
No, an alpha particle is the nucleus of a normal helium atom - 2 protons + 2 neutrons. Therefore, an alpha particle has approximately 4 times the mass of a proton or neutron.No, an alpha particle is the nucleus of a normal helium atom - 2 protons + 2 neutrons. Therefore, an alpha particle has approximately 4 times the mass of a proton or neutron.No, an alpha particle is the nucleus of a normal helium atom - 2 protons + 2 neutrons. Therefore, an alpha particle has approximately 4 times the mass of a proton or neutron.No, an alpha particle is the nucleus of a normal helium atom - 2 protons + 2 neutrons. Therefore, an alpha particle has approximately 4 times the mass of a proton or neutron.
What makes up nearly all of the atoms's mass?
The sum of all Protons and Neutrons.
What is the subatomic particle that has the greatest mass?
The largest subatomic particle (by mass) is the proton. The mass of subatomic particles is measured in atomic mass units (amu). The proton has a mass of 1.007 amu, the neutron has a mass of 1 amu, and the electron has a mass of .0005 amu.
What is a neutral subatomic particle in an atoms nucleus that has a mass nearly equal to a protons and no change?
Neutrons.
A neutral particle with nearly the same mass as the proton is the?
The neutron is a neutral particle with nearly the same mass as the proton. It is found in the nucleus of atoms alongside protons. Neutrons help stabilize the nucleus and are crucial for nuclear reactions.
What subatomic particle has mass nearly equal to that of a proton but carries no electrical charge?
The neutron is a subatomic particle that has mass nearly equal to that of a proton but carries no electrical charge.
Which subatomic particle has such a small mass that is not used to calculate the atoms atomic mass?
electron
What is a charged particle that accounts for nearly half the mass of an atom?
The proton.The proton is a particle of the nucleus (a nucleon) of charge +1. Neutrons are nucleons with no charge, are slightly more massive than a proton, and are part of every atomic nucleus except for the simplest, Hydrogen (there are exceptions, of course, in deuterium and tritium, but here we will keep to simple Hydrogen.)Electrons are tiny by comparison, and are not a part of the nucleus. They "orbit" at some distance. They provide the -1 charge to balance the charge of a proton, but they have a very low mass, 1/1836 that of a proton.Except for the atom Hydrogen, where the proton is practically all the mass of the atom, the proton is the charged particle which accounts for nearly half of the mass of any atom.
What is nearly all of an atoms mass made up of?
Nearly all of an atom and mass is made up of protons and neutrons.
Which particle has the smallest mass atoms or electron?
An electron has a much smaller mass than any atom.
What is a neutral subatomic particle in an atoms nucleus that has masses nearly equal to that of a proton?
Protons and Neutrons compose the nucleus of an atom. Protons and nutrons weight combine to give the mass of the atom. In most atoms, the amount of Neutrons is equivalent to the amount of Protons.
Which has the smallest mass?
Hydrogen has the smallest atomic mass at roughly 1.008 grams per mol (6.02x10^23 atoms)
What is the most neutral particle with nearly the same mass as the protons?
They are the neutrons. They are in middlem, in nucleus
The mass of a neutron is nearly equal to the mass of what other subatomic particle?
No, an alpha particle is the nucleus of a normal helium atom - 2 protons + 2 neutrons. Therefore, an alpha particle has approximately 4 times the mass of a proton or neutron.No, an alpha particle is the nucleus of a normal helium atom - 2 protons + 2 neutrons. Therefore, an alpha particle has approximately 4 times the mass of a proton or neutron.No, an alpha particle is the nucleus of a normal helium atom - 2 protons + 2 neutrons. Therefore, an alpha particle has approximately 4 times the mass of a proton or neutron.No, an alpha particle is the nucleus of a normal helium atom - 2 protons + 2 neutrons. Therefore, an alpha particle has approximately 4 times the mass of a proton or neutron.
What makes up nearly all of the atoms's mass?
The sum of all Protons and Neutrons.
