Periodic table - elements and their properties and spectra:emission and absorption

Learn chemistry easy and interactive way.

Uma Tabela Periódica em português, com umadescrição básica de cada um dos elementos. Para você estudante queprecisa fazer uma consulta rápida e bem detalhada ela éperfeita.A Periodic Table inPortuguese, with a basic description of each element. For youstudents who need to make a quick and very detailed consultation itis perfect.

list of so much Terms in Chemistry with definition, offline andfree

Se pueden consultar algunos datos referentes a la tabla periódicade los elementos químicos, como numero atómico, símbolo, valencia ypeso atómico, se añadirán mas datos posteriormente

Cognitive periodic elements info. Many properties&data. Tables,lists, charts.

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