Technically, any atom could have 40 electrons, but it would have a very weird charge. However, Zirconium has 40 electrons without being an ion.
The chemical symbol of uranium is 'U' and it has 92 electrons.
The chemical symbol for a magnesium atom that has lost two electrons is Mg2+.
The symbol An doesn't exist.
A carbon-40 atom has 6 protons, 6 electrons, and 34 neutrons.
There are three unpaired electrons in the Lewis symbol for a Phosphorous atom, represented by three dots surrounding the atomic symbol P. This indicates that Phosphorous has three unpaired electrons in its outer shell.
Argon-40 atom has 18 electrons.
The chemical symbol of uranium is 'U' and it has 92 electrons.
The symbol for antimony is Sb. A neutral atom of antimony has 51 electrons.
The symbol for boron is B, and a neutral atom of boron has 5 electrons.
The symbol of a boron atom is "B", and the number of electrons in a neutral atom is the same as the number of protons, which equals the atomic number of boron: 5.
The symbol for xenon is Xe, and a neutral atom of xenon has 54 electrons.
The chemical symbol of chlorine is Cl. Atomic number of it is 17. It has 17 electrons.
The chemical symbol for a magnesium atom that has lost two electrons is Mg2+.
surely i don't know sodium atom which can be gained 2 electrons but anyway i thought the answer is Na+2
Electron configuration of uranium: [Rn]5f36d17s2
Zirconium is No. 40 in the Periodic Table. The '40' tells us the position of zirconium in the table, the number of protons in an atom , and the number of electrons in a neutrally charged atom. So the answer to you question is '40'.
The chemical symbol of uranium is U. Uranium has 92 electrons.