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Why doesnt the mass number change when electrons are added or removed?
The mass number represents the total number of protons and neutrons in an atom's nucleus. Electrons, which are negatively charged particles, have negligible mass compared to protons and neutrons. Therefore, adding or removing electrons does not significantly affect the mass number of an atom.
Which particles account for most of the atoms mass?
Physics has not managed to discover a particle that accounts for mass
What is the mass of an atom found by?
The mass of an atom is primarily determined by the combined masses of its protons, neutrons, and electrons. Protons and neutrons contribute most of the mass since electrons have negligible mass. The exact mass of an atom can be found by adding up the masses of its protons, neutrons, and electrons.
Is it true that the size of an atom depends on the number of electrons protons and neutrons present in the atom?
Yes, the size of an atom is primarily determined by the number of electron shells it has, which is influenced by the number of protons and electrons. The protons and neutrons, located in the nucleus, contribute to the mass of the atom but have negligible impact on its size.
Where is most of the mass of an atom contained?
When calculating the mass of an atom, you add the mass of the protons and the neutrons. This is the nucleus of the atom. The electrons are small enough to be ignored except in the most delicate calculations.
What 2 parts of an atom give it is mass?
The atomic mass of an element depends on the weight of the protons, neutrons, and electrons (almost negligible) in one mole (6.022 x 10^23 atoms) of the element.
What subatomic particle contributes alomst no weight to an atom?
The subatomic particles that contribute most almost no weight to an atom are electrons at various energy levels. Isotopes of the same element differ from each other only by the number of neutrons.
Where is most of the mass of an atom contain?
in the nucleus of an atom -proton and neutrons , electrons in the orbit has the negligible mass.
Why doesnt the mass number change when electrons are added or removed?
The mass number represents the total number of protons and neutrons in an atom's nucleus. Electrons, which are negatively charged particles, have negligible mass compared to protons and neutrons. Therefore, adding or removing electrons does not significantly affect the mass number of an atom.
Where is most of the mass located in an atom and why?
in the centre within nucleus where protons and neutrons are located.protons and neutrons have atomic mass of 1 u each while electrons revolving around have mass=0u[almost negligible]. so most of the mass is located in centre of an atom.
Which particles account for most of an atoms mass?
Protons and neutrons are the particles that account for most of an atom's mass. Electrons, which have much less mass, play a negligible role in the overall mass of an atom.
Why atomic mass is concentrated on the center of the atom?
The atom is essentially made out of two main components: the nucleus and the electrons. The nucleus is in the centre of the atom whilst the electrons orbit it from a distance. The mass of the electrons is almost negligible, being almost 2000 times smaller than a proton, which is part of the nucleus. The nucleus, whilst having a minute mass, is still many times greater than the electrons. This is why the mass is concentrated in the centre on the nucleus.
What particle contributes a negligible amount to the atomic mass?
There are a number of particles of particularly low mass. Electrons have much less mass than either protons or neutrons, and so are negligible in calculating the mass of an atom. However, electrons are still much heavier than neutrinos or photons, which are even more negligible in mass.
The weight of an atom is the weight of its?
The weight of an atom is primarily determined by the total number of protons and neutrons in its nucleus. Electrons, which have negligible mass, also contribute to the atom's weight but to a much smaller extent.
Mass of atom is contrated on what?
The mass of an atom is concentrated within its nucleus, which contains protons and neutrons. The electrons, which have negligible mass compared to protons and neutrons, orbit around the nucleus in specific energy levels.
Do atoms have gravitational force?
Yes. Everything with mass has gravity. Something with as little mass as an atom, though, has negligible gravity.
Which particles account for most of the atoms mass?
Physics has not managed to discover a particle that accounts for mass
