Web5 apr. 2024 · While protons and neutrons are located inside the nucleus at the center of the atom, electrons are located outside the nucleus in what is often called the electron cloud. Figure 4.4. 1: Electrons are much smaller than protons or neutrons. If an electron was the mass of a penny, a proton or a neutron would have the mass of a large bowling ball! Web4 nov. 2016 · The name of the isotope is radium-228. This is also called mesothorium 1, according to Wikipedia. The number of protons is the atomic number of the element, which is radium, Ra. Isotopes are named for their mass numbers. The mass number is the sum of the protons and neutrons iin the nucleus of the atom. For the radium isotope in your …

What is the name of the isotope with 88 protons and 140 neutrons?

Web21 nov. 2024 · Radium is a chemical element with atomic number 88 which means there … WebWith atomic number 88, it has four natural isotopes of atomic weight 228, 226, 224 and … desktop survey archaeology

Francium - Element information, properties and uses Periodic …

WebThe atomic mass unit (u or amu) is a relative unit based on a carbon-12 atom with six protons and six neutrons, which is assigned an exact value of 12 amu's (u's). This is the standard unit for atomic or molecular mass, and 1 amu is thus 1/12 th the mass of a 12 C atom. This is obviously very small. 1 amu = 1.66054x10-27Kg = 1.66054x10-24 g. Web14 jan. 2013 · The atomic number of radium is 88. So there are 88 protons and 88 … Web23 mrt. 2024 · All nuclei with 84 or more protons are radioactive and elements with less than 84 protons have both stable and unstable isotopes. All of these elements can go through nuclear changes and turn into different elements. In natural radioactive decay, three common emissions occur. desktop support technician salary entry level