The atomic number is the number of protons in an atom of an element. For example, Sodium's atomic number is 11. This tells us that an atom of sodium has 11 protons in its nucleus.
The interesting thing here is that every atom of sodium contains 11 protons. If an atom doesn't have 11 protons, it can't be an atom of sodium. Adding or removing protons from the nucleus of an atom creates a different element. For example, removing one proton from an atom of sodium creates an atom of neon.
sodium= NA atomic number= 11
Sodium symbol is Na and its atomic number is 11.
The atomic number of sodium is 11, and the symbol is Na.
Sodium is a non metal element. Atomic number of it is 11.
The symbol for the chemical element sodium is Na and its atomic number is 11.
The atomic number of sodium is 11.
Sodium's atomic number is 11.
Sodium is a metal element. Atomic number of it is 11.
Sodium is a metal element. Atomic number of it is 1.
Sodium (Na) is atomic number 11.
The atomic number of sodium is 11, and the symbol is Na.
sodium= NA atomic number= 11
Sodium symbol is Na and its atomic number is 11.
The atomic number of sodium is 11, and the symbol is Na.
The atomic number of Sodium is 11.
Sodium has an atomic number of 11.
The atomic number of Sodium is 11.