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The atomic weight of a chemical element is determined experimentally taking into account the isotopic composition of this element and the atomic masses of these isotopes.
Justyn Kuhic
Wiki User
∙ 15y agoThe proton & neutron both have about the same mass, & between them account for most of the mass of an atom; the mass of the proton is 1836 times that of the electron. Over 99% of the volume of an atom is empty space, so the mass of even the 'heaviest' atom is actually very small.
Wiki User
∙ 13y agoIt is just the equivalence of mass and energy, Einstein's formula E = mc2. When for instance a uranium 235 nucleus fissions, a small proportion of the mass of the nucleus is lost and converted to energy which is released initially as kinetic energy and then converts to thermal energy.
Wiki User
∙ 10y agoThe nucleus of an atom is the part that contains the mass. The nucleus is made up of protons and neutrons. These subatomic particles "condensed" out of the energy of the Big Bang.
As Einstein proved E=MC2 , which means that energy and mass are equivalent - mass is solid energy.
Wiki User
∙ 9y agoThe atomic weight is also known as Atomic Mass. The atomic mass of an atom is the number of protons and neutrons present in an atom.
Wiki User
∙ 15y agoNo one knows. A higgs field has been postulated to explain mass ... but so far there's not one bit of evidence to back it up.
Wiki User
∙ 13y agoThe mass is in the nucleus. Protons and neutron have a lot of mass, whereas electrons have very little mass.
Wiki User
∙ 12y agomost of the mass comes from the atoms nucleus (protons and neutrons)
the electrons are extremely small in comparison
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Can the energy from splitting an atom be contained and used?
The French get the majority of their electricity by containing and harnessing the energy from splitting atoms. So yes, it's very doable.
Where does the power come from in the use of nuclear fuels?
Energy contained in bonds within a nucleus that is converted to kinetic energy.
What is the energy state of an atom?
The energy state of an atom is an energy level.
What is contained energy called?
energy of containment
Is nuclear a source of energy that doesn't release carbon dioxide?
Yes, nuclear energy does not produce CO2 by-products. No by-products are released into the atmosphere, all are contained within the reactor. The energy comes from a neutron colliding with a uranium atom causing it to split into two different atoms.
What element is used to produce tremendous energy contained in the nucleus of an atom?
hydrogen
Where are massive amounts of energy in an atom contained?
When you split a atom, you will get quarks, when you split a quark, the theory is that you will get little strings of energy (take a look at the string theory)
The mass of an atom is contained primarily in its?
The mass of an atom is contained primarily in its nucleus.
Where does the energy come from in the fission process?
It is stored in the atom.
When an atom undergoes radioactive decay the energy released in the reaction comes from what?
The energy that comes from the radioactive decay of an atom can come from the electrons and can come from the strong force inside the nucleus.
Each period in the periodic table corresponds to .?
Each period corresponds to the number of shells (energy levels) contained in the atom.
in the use of nuclear, where does the "power" come from?
Energy contained in bonds within a nucleus that is converted to kinetic energy.
Can the energy from splitting an atom be contained and used?
The French get the majority of their electricity by containing and harnessing the energy from splitting atoms. So yes, it's very doable.
What sub levels are contained in the hydrogen atoms first four energy levels?
The hydrogen atom has only one electron.
Where does the power come from in the use of nuclear fuels?
Energy contained in bonds within a nucleus that is converted to kinetic energy.
How many nitrogen valence electrons can be contained in 1 atom?
5 valence electrons can be contained in 1 atom
How many electrons are contained in the energy level closest to the nucleus?
It depends on which atom you are talking about. Be specific! (like all my teachers tell me) :)
