<P> The atomic number or proton number ( symbol Z ) of a chemical element is the number of protons found in the nucleus of an atom . It is identical to the charge number of the nucleus . The atomic number uniquely identifies a chemical element . In an uncharged atom , the atomic number is also equal to the number of electrons . </P>
<P> The atomic number or proton number ( symbol Z ) of a chemical element is the number of protons found in the nucleus of an atom . It is identical to the charge number of the nucleus . The atomic number uniquely identifies a chemical element . In an uncharged atom , the atomic number is also equal to the number of electrons . </P>
what identifies the number of protons in the nucleus of an atom
what identifies the number of protons in the nucleus of an atom
The atomic number or proton number ( symbol Z )
The atomic number or proton number ( symbol Z )