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Because the atomic number is determined by counting the number of electrons circling the nucleus, (neutrons and protons). Only "stable elements" are given atomic numbers, as unstable ones loose and gain electrons. This is based on an atoms natural state.

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The number of electrons in an atom of an element is the same as the element's?

The number of electrons in an atom of an element is the same as the element's atomic number. The atomic number is the number of protons in the nucleus of an atom, which also equals the number of electrons in a neutral atom.


How do you determine the number of electrons inone atom of an element?

the number of electrons of an atom is the same as it's atomic number


How can you find he number of electrons in an atom?

in an atom of neutral charge, the number of electrons will be the same as the number of protons, or the atomic number.


How many electrons has an atom?

An atom has the same number of electrons as it does protons, and the number of protons determines what element it is.


The number of electrons in an atom of iodine?

The neutral iodine atom contain the same number of electrons as protons - 53.


What is an atom called when you have the same numbers of protons as electrons?

On average, in any atom, you will have the same number of electrons and protons.


In a neutral atom the number of electrons equals the number of what?

The number of electrons should equal the number of protons, otherwise you have an ion.


Is an atom that has the same number of protons as neutrons a neutral atom?

False. The atom that has the same number of protons as it has electrons is a neutral atom.


How many electrons versus protons in an atom?

The number of electrons should = the number of protons.


What two particles in an atom always have the same number?

Protons and electrons in an atom always have the same number, which determines the atom's overall charge. The number of protons is equal to the atomic number of the element, while the number of electrons is equal to the number of protons in a neutral atom.


How many electrons does an atom of lead contain?

Lead has 82 Protons, 82 Electrons, and 125 Neutrons. It also has a melting point of 327.5 degrees C (or621.5 degrees F)


How many protons in an uncharged atom?

equals the total number of electrons in the orbital shells.