12
A nucleus having 11 protons and 12 neutrons is a sodium nucleus, no of neutrons may differ in case of isotopes.
The isotope notation for sodium with 11 protons and 12 neutrons would be Sodium-23, where the number 23 represents the sum of protons and neutrons in the nucleus.
It would become an isotope. Isotopes have different numbers of neutrons.
The symbol for a sodium isotope with 12 neutrons would be "Na-23". This notation indicates the element symbol "Na" for sodium and the total number of protons and neutrons in the nucleus (12 neutrons + 11 protons = atomic mass number 23).
If the binding energy of a nucleus was zero, the nucleus would not be stable and would disintegrate. The nucleus relies on the binding energy to hold its protons and neutrons together. Without this binding energy, the nucleus would break apart into individual protons and neutrons.
Without neutrons, the nucleus would lack stability as neutrons help bind protons together through the strong nuclear force. As a result, the nucleus would likely be unstable and prone to decay, potentially leading to the emission of particles or radiation in order to achieve a more stable configuration.
The neutron has no charge so changing the number of neutrons in the nucleus would not change the charge of the nucleus.
you only find 1 type of atom in an element
If a nucleus contained no neutrons, there would only be protons all with a positive charge which would be very unstable. Neutrons help space out the positive charges and bind the nucleus together.
See the periodic system. They are numbered according to the number of protons in the nucleus. So number 11 is Sodium. It was discovered in 1807 by Davy, who called it Sodium. In 1813 Berzelius called it Natrium, and gave it the symbol Na.
A sodium isotope with a mass number of 25 would have 11 protons, as sodium typically has 11 protons in its nucleus. The mass number represents the total number of protons and neutrons in an atom, so subtracting the number of neutrons (in this case, 25 - 11) gives the number of protons.
Protons and Neutrons compose the nucleus of the atom. They are surrounded by a cloud of electrons. If our universe was an atom, the sun would be the nucleus (with protons and neutrons) and the orbiting planets would be the electrons.