by using the periodic table, how can you figure out how many protons an atom has? Electrons? Neutrons?

Answer 1

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.

Example:
Hydrogen, atomic number = 1. Therefore, 1 proton, 1 electron.
It has three isotopes:
H-1 (1 proton, 1 electron, no neutrons)
H-2 (1 proton, 1 electron, 1 neutron)
H-3 (1 proton, 1 electron, 2 neutrons).

You might check the section you are asking this in, though. This is the Religion section.

Answer 2

# of Protons = Atomic Number
i.e. hydrogen has 1

# of Electrons = Atomic Number - Charge
i.e. H+1 has (1 -1), or 0

# of Neutrons, depends on the isotope...

Answer 3

Yes. The number of the element is the number of protons and electrons. The number of neutrons can vary within an element, but you can figure it out with the atomic weight which the most stable version is listed.

How is this religious or spiritual?

Answer 4

The number of electrons is always the same as the number of protons in an atom -- the electrons and protons have to balance out. So if you know the atomic number, then you know the number of protons, and so you know the number of electrons. The atomic number IS the numer of electrons as well as protons.

Answer 5

The number on top of the element's symbol gives you the atomic number which is the number of e-. The number of protons is equal to the number of electrons.

You get neutrons by subtracting the atomic number from the number (a decimal...round it) and below the symbol.

Answer 6

The elements in the periodic table are in order of how many electrons they have. So hydrogen has one, helium has two and so on. Most have the same number of protons and neutrons but that isn't always the case.

Answer 7

protons are the same as the atomic number, electrons are also the same, unless the charge states otherwise, and neutrons are the atomic weight minus the protons.

Answer 8

lol ok the atomic number is how many protons it has, the atomic mass minus the atomic number is how many neutrons it has, and as long as it is an atom and not an ion, it has the same ammount of electrons as it does protons.

Answer 9

its' atomic mass (the decimal number) is the number of protons and neutrons. also there are as many electrons as there is protons, but it's number of neutrons can change.
ex:Carbon-12, Carbon-14.

Answer 10

The atomic number is usually on the top left corner of each element. the atomic mass is on the bottom.