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  2. Physical chemistry - Wikipedia

    en.wikipedia.org/wiki/Physical_chemistry

    Physical chemistry is the study of macroscopic and microscopic phenomena in chemical systems in terms of the principles, practices, and concepts of physics such as motion, energy, force, time, thermodynamics, quantum chemistry, statistical mechanics, analytical dynamics and chemical equilibria.

  3. Chemical bond - Wikipedia

    en.wikipedia.org/wiki/Chemical_bond

    A chemical bond is an attraction between atoms. This attraction may be seen as the result of different behaviors of the outermost or valence electrons of atoms. These behaviors merge into each other seamlessly in various circumstances, so that there is no clear line to be drawn between them.

  4. Shielding effect - Wikipedia

    en.wikipedia.org/wiki/Shielding_effect

    can be found by using quantum chemistry and the Schrödinger equation, or by using Slater's empirical formulas. In Rutherford backscattering spectroscopy, the correction due to electron screening modifies the Coulomb repulsion between the incident ion and the target nucleus at large distances. It is the repulsion effect caused by the inner ...

  5. Covalent bond - Wikipedia

    en.wikipedia.org/wiki/Covalent_bond

    A covalent bond forming H 2 (right) where two hydrogen atoms share the two electrons. A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms.

  6. Applications of quantum mechanics - Wikipedia

    en.wikipedia.org/wiki/Applications_of_quantum...

    Quantum physics is a branch of modern physics in which energy and matter are described at their most fundamental level, that of energy quanta, elementary particles, and quantum fields. Quantum physics encompasses any discipline concerned with systems that exhibit notable quantum-mechanical effects, where waves have properties of particles, and ...

  7. How Should a Beginner Invest in Stocks? 1 Simple ... - AOL

    www.aol.com/finance/beginner-invest-stocks-1...

    Invest in a simple index ETF to build wealth over time.

  8. 5 charts that explain why stocks took off last year - AOL

    www.aol.com/five-investors-biggest-takeaways...

    While the “Magnificent Seven” tech stocks — Nvidia, Microsoft, Apple, Amazon, Tesla, Alphabet and Meta Platforms — took home the lion’s share of the market’s gains last year, for ...

  9. Periodic table - Wikipedia

    en.wikipedia.org/wiki/Periodic_table

    It is an icon of chemistry and is widely used in physics and other sciences. It is a depiction of the periodic law, which states that when the elements are arranged in order of their atomic numbers an approximate recurrence of their properties is evident. The table is divided into four roughly rectangular areas called blocks. Elements in the ...