Americium-241 has: 95 protons, 95 electrons, 146 neutrons.
For other isotopes the number of neutrons is different.
Number of neutrons = Mass number of an isotope - 95
Americium has 95 protons and electrons. Number of neutrons: atomic mass of an isotope - number of protons
The isotope Americium-243 has 148 neutrons.
Americium has 95 protons and electrons. Number of neutrons: atomic mass of an isotope - number of protons
The atomic number of the element americium (Am) is 95. From this we can tell that the nucleus of the atom is 95 protons. As an atom is electrically neutral (number of positively charged protons is equal to the number of negatively charged electrons and both carry a relative charge of magnitude 1), an americium atom would also have a total of 95 electrons in its electron shells. The mass number of Am is likely around 243, so you can estimate that an atom of Am would have 243 - 95 = 148 neutrons. Of course, if there are isotopes, the number of neutrons would vary for each isotope of americium.
There are 19 known isotopes of americium, with neutron counts ranging from 136 to 154. Americium-241, the easiest to produce, has 146 neutrons. Number of neutrons = Atomic weight (rounded) of an americium isotope - 95 Each isotope has a different number of neutrons. Americium has also 95 protons and electrons.
Americium has 95 protons and electrons. The number of neutrons can vary by isotope, with three notably synthesized: Am-241 (146 neutrons) Am-242 (147 neutrons) Am-243 (148 neutrons).
Americium has 95 protons.
There are 118 neutrons in the element gold.
Americium has 95 protons and electrons. Number of neutrons: Atomic Mass of an isotope - number of protons
there are 61 neutrons in a the element silver
The number of protons that an element has defines what that element is, regardless of the number of neutrons it has. Therefore, the chemical element having 82 protons, which is lead, or Pb, can take many different forms. In fact, there are 38 different known isotopes of lead, ranging from having 96 neutrons to having 133 neutrons. Despite that, they are all still called lead.
Hydrogen has 0 neutrons