Total number of protons AND the total number of electrons.
The atomic number of an atom is equivalent to the number of protons in its nucleus.
The atomic number is the number of protons and therefore, assuming the atom is neutral, the number of electrons. You would need to additionally know the atomic mass to figure out the number of neutrons.
A neutral barium atom has 56 electrons. This is because the atomic number of barium is 56, which represents the number of protons and electrons in a neutral atom.
The number of an electron in a neutral atom is indicated by the atomic number, which is equal to the number of protons in the nucleus of the atom. In a neutral atom, the number of electrons is the same as the number of protons.
The atomic number = the number of protons in the nucleus
In a neutral atom the atomic number is the equivalent to number of electrons and protons.
Either the number of protons or the number of electrons in a neutral atom is equivalent to its atomic number.
In a neutral atom, the number of electrons is always the same as the atomic number.
In a neutral atom the number of protons is equal to the number of electrons. And by definition the atomic number of an atom is equal to the number of protons in it. So the atomic number of a neutral atom is equal to the number of protons or the number of electrons in the atom.
Atomic number is the number of protons in a neutral atom
The atomic number is equal to the number of protons in an atom, which also corresponds to the number of electrons in a neutral atom. This means that the atomic number gives you the total number of electrons in a neutral atom of that element.
The atomic number of an atom is equivalent to the number of protons in its nucleus.
The atomic number of magnesium is 12. The atomic number tells you the number of protons in the nucleus of the magnesium atom, which also corresponds to the number of electrons in a neutral magnesium atom.
The number of protons is equal to atomic number; in a neutral atom the number of electrons is also equal to the numbers of protons.
no. atomic number will be same as the number of protons will not change for an ion and its neutral atom, but the number of electrons will vary.
The atomic number of a chemical element is equivalent to the number of protons and electrons, in the neutral state.
Atomic number is 6. The isotope is 6C11 Atomic number = number of protons = number of electrons (for a neutral atom)