C&EN3 个月
Periodic Table of Chemical Elements
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 ...
Royal Society of Chemistry12 天
History of the periodic table
Complete the following interactive that summarises the development of the periodic table. INSERT[UUPT_OE_CI_09_int] MM provides a summary of the history and development of the Periodic Table and ...
BBC1 年
Groups in the periodic table - AQA
The actual boiling point of radon is -61.7˚C. An estimate would lie midway between -100˚C and -50˚C based on the shape of the graph.
C&EN10 个月
Periodic Table of Moles
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 ...
BBC4 年
Groups in the periodic table - AQA
The table shows the melting points of five alkali metals. Use this information to describe how melting point changes in group 1.
Royal Society of Chemistry5 年
Chemistry in its element: bohrium
This includes the most recently announced element of all, element 117 that was synthesised in April 2010. This podcast is about one of these elements, number 107 in the periodic table, called bohrium.