Can you name everything from Ac to Zr? Test your knowledge of the periodic table and see if you can top the leaderboard ...

Browse a list of curated classroom activities by the American Association of Chemistry Teachers. Lesson Plans: The Periodic Table and Bonding Download inquiry-based lesson plans and activity sheets to ...

A chemical element is one of those squares ... chlorine almost never exists in this form and so the atom depicted on the periodic table is almost an abstraction. In its simplest form, chlorine ...

Word equations and balanced chemical equations represent ... in an atom can be calculated from the atom's atomic number and mass number. The periodic table - AQA Mendeleev made an early periodic ...

Even when Mendeleev had published his table, and Newlands claimed to have discovered it first, the Chemical Society would not back him ... Within 10 years of his work, the structure of the atom had ...

You're listening to Chemistry in its element brought to you by Chemistry World, the magazine of the Royal Society of Chemistry. Hello, this week we're almost at the top of the periodic table because .

An international team led by scientists of GSI/FAIR in Darmstadt, Johannes Gutenberg University Mainz and the Helmholtz ...

Electronegativity, an essential characteristic of all elements in the periodic table, measures an atom's ability to attract electrons towards itself within a chemical bond. This vital theoretical ...

Scientists at Lawrence Berkeley National Laboratory say they have developed the technology that could finally produce the fabled element 120, which would require the addition of a new row to the ...

An international team led by scientists of GSI/FAIR in Darmstadt, Johannes Gutenberg University Mainz and the Helmholtz ...

Where does the periodic table of chemical elements end and which processes lead to the existence of heavy elements? Researchers report on experiments to come closer to an answer. They gained insight ...

The numbers of subatomic particles in an atom can be calculated ... so similar chemical properties. Sample exam questions - atomic structure and the periodic table - AQA Understanding how to ...