it means no of proton in its nucleus which is the identity of an atom.
The atomic number is the number of protons in the element. For example calcium has 20 protons, so that means it has an atomic number of 20. You can find the element's number on the periodic table; its usually the number on top of the element's symbol
Atomic number is the number of protons in the nucleus of an atom. Each element has a unique atomic number.
An atomic mass of 12 means carbon, and its atomic number is 6.
Titanium is a metal element. Atomic number of it is 81.
Z means the number of protons in an atom of an element, which is the element's atomic number.
Chlorine is a none metal element. atomic number of it is 17.
It represents the number of protons and the number of electrons in an atom of the element.
We use atomic number for recognize chemical elements. atomic number means, how many protons are there in a single atom.
Zink is a metal element. Atomic number of it is 30.
Sodium is a metal element. Atomic number of it is 1.
The element with the atomic number 1 is Hydrogen (H). This means that the hydrogen atom generally has 1 electron and 1 proton.
If the atomic number of Element D is 20, then Element D is calcium (Ca). The atomic number of calcium is 20, so R would also have an atomic number of 20. This means that R would also be calcium (Ca).