U-238 (Uranium-238) has 92 Electrons
Neutral-charge sulfur, regardless of its isotope, has 16 electrons, the same number as for protons.
Hafnium has 72 electrons and protons; the number of neutrons is different for each isotope and depend on atomic mass of the isotope.
A neutral oxygen atom has 8 electrons regardless of the isotope.
32 protons, 32 electrons. Ge-72 isotope has 40 neutrons
Nickel have 28 protons and electrons and a different number of neutrons for each isotope..
Every isotope of magnesium has 12 electrons.
If 42 is the atomic number then there is 42 electrons in isotope.
The isotope Cr-54 has 24 electrons.
92
Neutral-charge sulfur, regardless of its isotope, has 16 electrons, the same number as for protons.
The atomic mass number of that isotope. So C14 has a molecular mass of 14 grams/mole U238, 238 grams/mole
Every isotope of cobalt has 27 electrons.
Seven.
Radium has 88 electrons. The number of neutrons is different for each isotope: Number of neutrons = Atomic mass of an isotope - 88
Hafnium has 72 electrons and protons; the number of neutrons is different for each isotope and depend on atomic mass of the isotope.
Regardless of the isotope, every silicon atom has 14 electrons.
This question is impossible to answer properly without knowing either how many protons there are or how many neutrons there are or how many electrons there are along with the charge. However it is most likely nitrogen, because Nitrogen's most common isotope is 14.