Look at the Atomic Number in the Periodic Table. Hydrogen, for instance, is 1, while Helium is 2. That is the number of protons. The number of electrons will, in general, be the same, except when the atom is in ionic form, such in for Sodium and Chlorine in a solution of salt water.
a) (well if it has different number of protons or electrons then it would be called an "ionized atom" either positive if more protons or negative if more electrons.) - if there are more neutrons inside the nucleus then protons you got isotopes - b) (well if it has different number of protons or electrons just look at the Periodic Table and count how many protons it has and look at the periodic table that will tell you what an atom will be )
a) (well if it has different number of protons or electrons then it would be called an "ionized atom" either positive if more protons or negative if more electrons.) - if there are more neutrons inside the nucleus then protons you got isotopes - b) (well if it has different number of protons or electrons just look at the Periodic Table and count how many protons it has and look at the Periodic Table that will tell you what an atom will be )
Hey there are 56 electrons and 56 protons in a barium atom (protons usually=electrons) also you should have a look on the Internet for a periodic table and print it off it has helped me allot.
a) (well if it has different number of protons or electrons then it would be called an "ionized atom" either positive if more protons or negative if more electrons.) - if there are more neutrons inside the nucleus then protons you got isotopes - b) (well if it has different number of protons or electrons just look at the Periodic Table and count how many protons it has and look at the periodic table that will tell you what an atom will be )
From the element name go to the periodic table and look for the atomic number. This is equal to the number of protons and to keep the atom neutral is also equal to the number of electrons.
ok so first you look at the atomic #. For helium that is 2. that is the number of protons, and electrons are the same # of protons . long story short, the atomic # is the number of protons which r the # of electrons
Look at the periodic table, do you see the 36 above the Kr? This is the atomic number. The atomic number represents the number of protons in an atom. This number is unique to each element a Kr atom will always have that number of protons.
Rutherfordium atom has 104 protons and electrons; the number of neutrons is different for each isotope.
Look at it's atomic number. That shows the number of protons it contains
They are equal.
you look at either the atomic number or the number of electrons. That's the number of protons.