The Periodic Table of the Elements From their location in the Periodic Table, which of the following elements tend to lose 2 electrons when they form lons? A. Berylium and Calcium B. Oxygen and Selenium C. Berylum and Orygen 14. D. Calcium and Selenium A group of elements have the following properties solids at room temperature forms positive lons good conductors of electricty malleable shiny Which element would be found in this group? A. Ne B. I C. Mg D. Sn 15.

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Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.