In an atom, only the neutrons and protons are present in the nucleus. In this question, the charge on the nucleus is +11. So, the correct option is D.
What is the electrical charge of an atom?
The neutrons present in the nucleus of an atom are neutral. Thus it does not have any charge. The electric charge on an atom is determined by the number of protons and electrons.
The protons of an atom are positively charged and the electrons of an atom are negatively charged.
Hence, if the number of electrons is higher than the number of protons, the atom will have a negative charge and if the number of protons is higher than the number of electrons, the atom will have a positive charge.
However, in an atom, the protons along with the neutrons are present in the nucleus and electrons are present in the atomic shells outside of a nucleus.
So, in the case of an atom with 11 electrons, 11 protons and 12 neutrons, the charge on the nucleus will be +11.
Therefore, the correct option is D
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