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What is Mass Number? The answer to this question and other informative content related to molecular chemistry is provided here. Read this article to get the basic knowledge of the atomic number and ...

The terms theory and model are defined, and students learn how a theory remains valid. Atomic Theory: The Development of the Atomic Theory: The terms theory and model are defined, and students learn ...

Atoms contain protons, neutrons and electrons. The electrons are arranged in shells around the nucleus. The periodic table The periodic table is a chart of all the elements arranged in increasing ...

What Are Atomic Orbitals: Atomic orbitals a concepts derived from quantum mechanics to describe the probability of finding an electron around an atom’s nucleus. The Orbtial Wave Function is a ...

Want to learn more about this centerpiece of chemistry? Take your pick from this collection of links about elements and the periodic table! Build an element ball, solve periodic puzzles, and check out ...

As of 2019, the Periodic Table of the Elements has been around for 150 years. Maybe you've felt a certain chemistry with 2019 but don't know why? Maybe it's because this year marks the 150th ...

The heaviest recognized chemical element with the atomic number 112 was discovered at the GSI Helmholtzzentrum für Schwerionenforschung and -- since February 19, 2010, -- officially carries the name ...

Scientists have shown that 34 is a ''magic number'' for neutrons, meaning that atomic nuclei with 34 neutrons are more stable than would normally be expected. Earlier experiments had suggested, but ...