Which of the particles determines the identity of an element?
961656
the proton\n\nelements with different amounts of neutrons are isotopes of the same element and elements of different amounts of electrons are ions of that element. only if you change the number of protons will you have an different element.
1131979
OK.  There was a discrepancy in the atomic mass of elements.  We have electrons, which have insignificant mass, and an equal number of protons (to make the atom neutral), but the atomic mass exceeds the sum of the masses of the protons + electrons.  So we hypothesize that there is another particle in the atom which has atomic mass roughly the same as a proton but no charge.\nIt makes sense that this particle is in the nucleus.\nBUT, we can't use magnetic properties to isolate this particle.  And an atom is pretty much indivisible.  So we must actually strip off the electrons AND the protons to isolate neutrons.  That's not easy.
693553
The atomic number of an element is equal to the number of protons the element has in the nucleus of one atom.\nThe number of protons in the nucleus determine what element it is.\n\nThe atomic mass of an element is equal to the sum of number of protons and the number of neutrons in the nucleus.  The electrons around the atom are neglected since their mass is negligible, as well as the fact that atoms can form ions by gaining and/or loosing electrons even though the element is the same.
786060
First you need to look up the element on a periodic table of elements.  I am sure you have one laying around somewhere =P\nAnyway, then look in the square that contains your element for a number either in the upper left corner or in some cases directly above it.  That is the number of protons in the atom.  Then you also know the number of electrons which is exactly the same as the number of protons.  To figure out neutrons, look for another number on in the square that isnt in the left corner or above the element.  This is the atomic mass.  Take the atomic mass and subtract the number of protons to get the number of neutrons
945388
density,volume,weight,number of electron and proton.
789494
Basic Atomic Structure\n\nThe definitions of atoms and elements seems, at first glance, almost circular: an element is a substance made up of only one kind of atom, and an atom is the smallest particle of an element that retains all the chemical and physical properties of the element. In fact, these two definitions do not form a closed loop, as they would if it were stated that an element is something made up of atoms. Every item of matter that exists, except for the subatomic particles discussed in this essay, is made up of atoms. An element, on the other hand, is—as stated in its definition—made up of only one kind of atom. "Kind of atom" in this context refers to the number of protons in its nucleus.\n\nProtons are one of three basic subatomic particles, the other two being electrons and neutrons. As we shall see, there appear to be particles even smaller than these, but before approaching these "sub-subatomic" particles, it is necessary to address the three most significant components of an atom. These are distinguished from one another in terms of electric charge: protons are positively charged, electrons are negative in charge, and neutrons have no electrical charge. As with the north and south poles of magnets, positive and negative charges attract one another, whereas like charges repel. Atoms have no net charge, meaning that the protons and electrons cancel out one another.
888504
The atomic number equals the number of protons.  Electrons should equal the number of protons, but may not if it's an ion.  Neutrons vary as to the specific isotope of the atom.\n\nExample:\nHydrogen, atomic number = 1.  Therefore, 1 proton, 1 electron.\nIt has three isotopes:\nH-1 (1 proton, 1 electron, no neutrons)\nH-2 (1 proton, 1 electron, 1 neutron)\nH-3 (1 proton, 1 electron, 2 neutrons).\n\nYou might check the section you are asking this in, though.  This is the Religion section.
765563
What is the representative particle of a molecular compound?                              \nNaCi\n\nThe charges of the ions of the..........elements can be determined by the position of these elements in the periodic table?\nNon Metallic\n\nPlease put this answer as best answer
172336
I believe the answer is Osmium. He is asking for number of neutrons, not number of protons. Take the atomic mass, (Os = 190.23) And subtract the number of protons it has (Os = 76), giving you an answer of 114.
638619
PROTONS AND NEUTRONS ARE MADE OF QUARKS.SIX TYPES OF QUARKS ARE RECOGNIZED AND EACH IS KNOWN AS A FLAVOR.THERE IS NOT A ORBIT LEVEL BUT A STRONG FORCE.BINDING ENERGY CAN BE CALCULATED FOR EACH NUCLEUS AND IS ONE INDICATOR OF NUCLEAR STIBILITY.
73226
Protons is the atom's atomic number.  It gives the atom its certain "chemical properties".  The proton has a weight of 1.  The neutron is a combination of a proton and electron roughly as evidenced by storing a neutron for more then 15 min and it will turn into a hydrogen atom.  For all intensive purposes the electron has no weight.  The neutron weighs 1 as well. When you combine the numbers of protons and neutrons in an atom you get the weight.  The neutrons act as glue for the atom and help keep it together.  Thus Uranium 235 is more unstable then Uranium 238. (235 is what they use in reactors).  The electron is attracted to the proton. Electron(-) proton (+).  But as you get towards the left section of the table you have atoms that want to lose their electrons since the want full orbitals.  As you get toward the right side of the table you get atoms that want to gain electrons to fill their shells.  These atoms that have a positive charge are known as cations longer word = positive. Shorter word or Ion = negative.
1086275
In scientific terms atoms are the smallest possible particle of a chemical element that retains its chemical properties. All atoms are made of the same basic elements, protons, neutrons and electrons , but each of the individual elements are made from different organizations of these materials. The basic structure of an atom is the nucleus, which is made of protons and neutrons (except hydrogen which only has a proton), and the electrons which, to over simplify it, "orbit" the nucleus. Elements are defined however by the number of protons in the nucleus, carbon always has 6 protons in it's nucleus, oxygen always has 8.\n\nAtoms are found EVERYWHERE. Everything you are, the air you breath, the things you smell, are all made of atoms, as others have said, it is the basic building block of everything, literally nothing would exist without them.\n\nIsotopes, contrary to what was said above, are in fact atoms, just a special kind of atom. The have the same amount of protons in their nucleus, hence they stay the same kind of element, but the have a different number of neutrons. I said above that hydrogen doesn't have a neutron in it's nucleus, and a standard hydrogen atom doesn't, but an isotope of hydrogen does, it's called deuterium, and it has 1 proton and 1 neutron in it's nucleus.\n\nDon't feel bad if you don't get it still, it really takes a class in chemistry to really get a handle on what exactly it all means. Good luck.
8946
You take the difference between the mass number and the atomic number to determine your neutron count.. at least that is what is stated in my Chemistry book.  Hope this info helped!
320110
Neutron, proton, and electron... though there are other sub-atomic particles making up these basic three.
23478
Could you be a little more specific?  Are you asking how the atomic weights in the periodic table derived?
838528
No elements are there.\n(If it would have been there, one would have to discover another quantum number in order to distinguish between them).\n& like the previous answerer said it would have been violated the Pauli's exclusion principle.\nThe quantum numbers are there to distinguish between different electrons.
360394
A more generic term for the components of an atom is "sub-atomic particles."  I think that's the answer you're looking for.