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2 days ago · Lanthanide rare-earth metals are ubiquitous in modern technologies 1,2,3,4,5, but we know little about chemistry of the 61st element, promethium (Pm) 6, a lanthanide that is highly radioactive and ...
1 day ago · where r → is the position vector of an atom and Δr = 0.3 Å, which is small enough compared to the mean atomic distance (about 2.8 Å) and is also tolerant for atomic vibrations. The selection of t 0 starts from the quenched configuration, and δ t is the time interval to observe SLMs.
3 days ago · Specific heat is defined as the amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius. It plays a crucial role in understanding how different materials respond to heating and cooling and describes their ability to store and release thermal energy.
5 days ago · Chemistry is a physical science. Chemistry is a highly interdisciplinary science that frequently overlaps with other sciences. The branches of chemistry are physical chemistry, organic chemistry, inorganic chemistry, analytical chemistry, computational chemistry, and biochemistry.
2 days ago · Chemistry Mysterious element promethium finally reveals its chemical properties. The highly unstable radioactive element promethium is hard to study in the lab, but chemists have now coaxed it ...
2 days ago · In chemistry, neutral defines a specific state of matter—a water solution that is neither acidic nor basic, or an atom or molecule with no electrical charge. But in non-scientific uses of the word, it generally means “not favoring either side,” such as in a contest or competition. In non-scientific contexts, it is usually clear what it ...
4 days ago · Kalina Christoff ‘s definition does exactly that. “Thought is a mental state, or series of mental states, that has some kind of content to it, with some personal attitudes towards the content ...
