The atomic number equals the number of protons in an atom, as well as the number of electrons in a stable, electrically neutral atom, it represents the identity of an element ,the simplest form of matter.
In any atom, the number of protons will equal the number of electrons, but only in a neutral atom. Remember that most atoms loan, borrow or share electrons, so the number of protons will not be equal to the number of electrons in all cases. In review, only in a neutral atom will the number of protons equal the number of electrons.
Atomic weight in atomic mass units = the number of protons + the number of neutrons. The number of protons is your atomic number. Subtract that from the atomic weight for the number of neutrons.
The atomic number of an element is equal to the number of protons in the nucleus of that element; it will identify the element. The number of neutrons of a given element may be different as the element may have a number of isotopes.
Please tell me your atomicnumber.You just did 'use atomic number in a sentence' by putting this question on-screen.You could even read the above question and answers aloud, and you will have done it again.I just couldn't believe my eyes when I realized that an atomic number is revealed by the number of protons in the nucleus of an atom!"What is your atomic number?" is NOT a good pick-up line, unless you are speaking to a scientifically-minded person.The atomic number of Helium is 2."The atomic number of Sulfur is 16."(Note that atomic number means the number of protons in the atom, that's why the term proton number is interchangeable with atomic number.)See the related Wikipedia link listed below for more information:
it tells us the number on the periodic table and it also tells us how many protons and nuetrons and electrons are in the atom within the nuecles.
The atomic number is the number of protons present in the atom's nucleus
The atomic number of an element represents the number of protons in each atom of the element.
the elementprotons in the nucleuselectrons in the electron cloud of a neutral atom
The number of Protons in an atom, so Hydrogen with 1 proton has the atomic number 1.
The atomic number of an element also represents the number of protons in that element.
The Atomic number which is the number of protons in an atom's nucleus.
The number of protons and electrons of the atom in a neutral state.
The atomic number.
Atomic number of an atom shows the number of protons in the nucleus of the atom. OR Atomic number of an atom is the number of electrons in the atom when the atom neutrally charged
Atomic number = number of a chemical element in the periodic table of Mendeleev = number of protons in the nucleus = number of electrons in the atom
The atomic mass of an element is measured not in the mass of the atom, but in the number of grams per mole.
the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.