by caunting the nombers of the orbital lines
No: They have the same atomic number but not the same atomic mass.
The atomic number is the same as the number of protons.
Well all Isotopes have the same atomic number so if you have the element the atomic number of an element with that same isotope is that same atomic number.
The same as its atomic number.
Atomic number of an element is same as the number of protons. It is same as number of electrons in neutral atom.
No, they have the same atomic mass, which is the number of protons plus the number of neutrons. No two elements have the same atomic number.
the atomic number
the atomic number is the same as the number of protons
Isotopes of the same element have the same number of protons (atomic number) but differ in number of neutrons (hence atomic masses).
The atomic number of the cation is the same as the atomic number of the neutral atom.
No.
The atomic number is the same as the number of protons in an element. It is sometimes also the same as the number of electrons depending on the charge of the element.