Search results
Results from the WOW.Com Content Network
Matter should not be confused with mass, as the two are not the same in modern physics. [9] Matter is a general term describing any 'physical substance'.
Johnson's baby powder made from talc in an old tin with a shaker on top Traditional container for baby powder and puff in South India, made of silver Baby powder might be applied after changing a diaper and cleaning the baby.
In chemistry and atomic physics, an electron shell may be thought of as an orbit that electrons follow around an atom's nucleus.The closest shell to the nucleus is called the "1 shell" (also called the "K shell"), followed by the "2 shell" (or "L shell"), then the "3 shell" (or "M shell"), and so on further and further from the nucleus.
A nuclide is a species of an atom with a specific number of protons and neutrons in the nucleus, for example, carbon-13 with 6 protons and 7 neutrons. The nuclide concept (referring to individual nuclear species) emphasizes nuclear properties over chemical properties, whereas the isotope concept (grouping all atoms of each element) emphasizes chemical over nuclear.