Atomic number is the number of protons in the nucleus of an atom.
The mass number however is the sum of the protons and neutrons in the nucleus of an atom.
Each element has one specific atomic number (= no. of protons), but can have more different number of neutrons, hence it might have different mass numbers, those atoms are called 'isotopes' of an element.
Examples are given below
Calcium:
Ca(40) has 20 protons and 20 neutrons (mass no. 40)
Ca(41) has 20 protons and 21 neutrons (mass no. 41)
Kalium:
K(40) has 19 protons and 21 neutrons (mass no. 40)
K(41) has 19 protons and 22 neutrons (mass no. 41)
The number of protons in the nucleus of an element gives that element its ATOMIC NUMBER.
It gives the number of neutrons in the particular atom.
The number of electrons is always the same as the atomic number. That gives you the number of protons and electrons. The atomic mass has nothing to do with it. What is the atomic number? That is your answer.
Atomic number. This gives the count of protons in the nucleus and therefore the posiitive charge of the nucleus. For an uncharged atom it therefore gives the total number of electrons in all shells
An element's atomic number gives it number of protons. Sulfur's atomic number is 16. Thus, it has 16 protons.
There is no known function for the mass number and atomic number. However, the difference between these two values gives the number of neutrons present in that atom.
The atomic number gives you a hint of how many protons are in the atom. While mass is the weight of the whole atom( including protons, electrons, and neutrons).
The total of number of protons in the nucleas gives you the atomic number.
The number of protons in the nucleus of an element gives that element its ATOMIC NUMBER.
Atomic Number It is thre position of the atom in the periodic table. It is the number of protons in the neucleud. It is the number of electrons in the neutally charged atoms. Atomic MASS it the total of the protons and neutrons in the atom.
It gives the number of neutrons in the particular atom.
The atomic number is determined by the number of protons, which are located in the nucleus.
The number of electrons is always the same as the atomic number. That gives you the number of protons and electrons. The atomic mass has nothing to do with it. What is the atomic number? That is your answer.
It is impossible to determine the number of neutrons from the mass number and atomic mass, since the two are essentially same value. However, with the atomic number and the mass number, one can calculate the number of neutrons by subtracting the atomic number from the mass number.
Atomic number is the number of protons (i.e. equal to the number of electrons) of an atom.
Atomic number. This gives the count of protons in the nucleus and therefore the posiitive charge of the nucleus. For an uncharged atom it therefore gives the total number of electrons in all shells
Mass