The number of protons in an atom is called the blank
- The number of protons in an atom is called the blank of the atom
- The number of protons in an atom is called the blank of the element
- The number of protons in an atom identifies it as an atom of a particular element
- The number of protons in an atom is known as
- Atom made of
- Atomic no of all elements
- In an atom the number of protons is equal to the number of electrons