Name 2 ways of finding number of protones in an atom?
814357
one way is that the atomic number is the same as the number of protons and the other way is to subtract the neutron by the mass
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!
449354
An atomic number is the number of protons in the nucelus of one atom of an element. This is used to identify each element as unique.
589038
The answer is c) +2. because if the atom has 12 protons, it is going to have 12 electrons to make it neutral. by taking away 2 electrons, it is giving the atom a positive charge, with 12 protons (positive charge) being more than 10 electrons (negative charge) giving an overall charge of +2.\n* protons - electrons = charge. =    +12-10=+2     =   c
292346
26 electrons. If it's an electrically neutral atom, then the number of protons must equal the number of electrons.
775515
Number of Protons/Electrons: 13 \nNumber of Neutrons: 14
1138448
Look on a periodic table.\n\nIt should be listed below the atomic number as a decimal value.  The mass number is an average mass (in atomic mass units) of an element, based on different isotopes.  It equals the number of protons + the number of neutrons in the nucleus.
716161
Well if it's stable, there will be the same amount of protons as electrons. If it has a charge add or subtract. \n(If you have a plus charge, that means there's 1 more proton than electron... if you have a -2 there are two more electrons than protons etc.)
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.
968601
this is what you do to find how many neurons and element has k What you do is Like if you look at tthe periodic table like the element Uranium and subtract the atomic mass from the atomic # and thats how you find out how many nuerons there are in an element and to find the electrons what you do is if you see a # on the right side of the element if it has  a # by it with a +/ -you do the oppisite of the sign taht is by the # like in Uranium since the atomic # is 92 subtract the # that is right next to the Symbol if it is a + and if it is a - then you would add it
393625
mass # =#protons + # neutrons\nand # protons = # electrons in an electronically neutral atom.\nso you can therefore find the # nuetrons\n#neutrons=mass#-# protons
799022
I'm assuming you really mean "How do you find out how many atoms of a element are in a particular compound?"\n\nJust multiply the subscript by the coefficient\n\nEx. 2 molecules of carbon dioxide. The coefficient is 2 and the subscript for carbon is 1. Therefore there are 2*1=2 atoms of carbon in 2 molecules of carbon dioxide.\n\nIf you just want the amount in one molecule, just substitute 1 for any coefficient you have.\n\nIf you cannot see any subscripts and/or coefficients for the element you are looking at, the subscript and/or coefficient is 1.
763467
Lithium has four neutrons and three protons. The number of protons is determined by the Atomic Number, which is the number at the upper left of the periodic table. Using the nearest whole number of the atomic weight, which is the numerical average of the relative proportions of the isotopes, and subtracting the atomic number, the number of neutrons is determined. For lithium with an atomic weight of 6.941, or about 7, the number of neutrons is 7 - 3 = 4. P. S. I referred to my Periodic Table of the Elements, not the web for my answer. I do not normally search the web for my answers.
970267
it describes the # of protons & electrons in that element.
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.
326489
It depends on which isotope you are atlking about.  The number of the isotope gives you the total number of nucleons (protons and neutrons) that it has.  Potasium is element number 19, so it has 19 protons (it is electrically neutral so it has just as many electrons as protons).  To find the number of neutrons just subtract 19 from the total number of nucleons.\n\nPotassium-39 has 20 neutrons, 19 protons and 19 electrons\nPotassium-40 has 21 neutrons, 19 protons and 19 electrons\nPotassium-41 has 22 neutrons, 19 protons and 19 electrons
421869
Protons, Neutrons, and electrons