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7 个月
Live Science on MSNPeriodic table of elements quiz: How many elements can you name in 10 minutes?But how many of these elements do you know? Test your knowledge and compete with other Live Science readers to see who can ...
elements and compounds, mixtures, atomic structure, Mendeleev's periodic table, groups in the periodic table and transition metals. Atomic structure and the periodic table flashcards include atom ...
The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...
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As part of the ChemClub's 10 th Anniversary (2015-2016), we asked clubs to create elements of the periodic table featuring a mole. To celebrate the International Year of the Periodic Table (IYPT) in ...
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