Promethium has 61 protons and electrons; For each isotope the number of neutrons is different. Number of neutrons = Mass number of an isotope - 61
Mendelevium has 101 protons and electrons.For each isotope the number of neutrons is different.Number of neutrons = Mass number of an isotope -101
It depends on what isotope you're talking about. To find the number of neutrons in a particular isotope, take the atomic mass and subtract the atomic number. For example, Na has a mass of roughly 23amu and 11 protons, so an Na-23 atom would have 12 neutrons.
Every sodium atom has 11 protons, the atomic number of sodium. The isotope with mass number 23 has (23 - 11) or 12 neutrons, because the mass number of an isotope is defined as the sum of the numbers of protons and neutrons in the isotope.
The symbol is Ba. The number of neutrons equal the number of protons.
Promethium has 61 protons and electrons.For each isotope the number of neutrons is different. Number of neutrons = Mass number of an isotope - 61
Promethium has 61 protons and electrons; For each isotope the number of neutrons is different. Number of neutrons = Mass number of an isotope - 61
Californium has 98 protons and neutrons.For each isotope the number of neutrons is different.Number of neutrons = Mass number of an isotope - 98
Copernicium has 112 protons and electrons.For each isotope of Cn the number of neutrons is different. Number of neutrons = Mass number of an Cn isotope - 112
The carbon-12 isotope has 6 protons and 6 neutrons. This isotope is the most stable and abundant form of carbon.
Ununseptium, with the atomic number 117, has 117 protons and 117 electrons. Since it is a heavy and unstable element, the number of neutrons can vary depending on the isotope, but a common isotope of ununseptium might have around 176 neutrons.
Number of neutrons = Atomic mass of an isotope - Atomic number of the element; the atomic number of Lr is 103. Lawrencium has many isotopes and each isotope has a different number of neutrons.
6 protons. The number of neutrons varies, but the most common isotope has 6 neutrons.
oxygen has 8 protons as its atomic number is 8. The number of neutrons depends on the isotope. O-15 isotope will have 7 neutrons, O-16 isotope will have 8 neutrons. (Note: Mass number = Number of protons + number of neutrons)
Americium has 95 protons and electrons. Number of neutrons: Atomic Mass of an isotope - number of protons
Technetium has 43 protons and 43 electrons. For each isotope the number of neutrons is different. Number of neutrons = Mass number of an Tc isotope - 43
Mendelevium has 101 protons and electrons.For each isotope the number of neutrons is different.Number of neutrons = Mass number of an isotope -101