Can two different elements have the same atomic number?

Aug 9, 2019 ... Some of the conventionally best shielding materials, such as lead, at intermediate energies have the lowest mass attenuation coefficient when compared to ... Aug 14, 2021 ... Purpose: Several new formalisms of Effective Atomic Number ( urn:x-wiley:00942405:media:mp15166:mp15166-math- ) ... Explore how atomic mass changes with atomic number in the periodic table of elements via interactive plots. Summary · The atomic number (Z) of an element is the number of protons in the nucleus of each atom of that element · The number of electrons is equal to the ... Sep 9, 2019 ... Also Known As: The atomic number is also known as the proton number. It may be represented by the capital letter Z. The use of capital letter Z ... Dec 5, 2024 ... On the periodic table, it has the symbol "Hg" and its atomic number is 80. It exists in several forms: Elemental (metallic) mercury ... One atomic mass unit (amu): the mass exactly equal to one-twelfth the mass of one carbon-12 atom that has six protons and six neutrons. 1 atom of carbon-12 = 12 ... Are all atoms of an element the same? How can you tell one isotope from another? Use the sim to learn about isotopes and how abundance relates to the ... To detect y-rays efficiently, a material with a high density and high effective Z (number of protons per atom) is required. Inorganic scintillation crystals ... An atom of silicon has an atomic number of 14 and a mass number of 28. a) How many protons, neutrons and electrons does the atom of silicon have? The atomic ...