Scientific American13d
The Classification of the Chemical Elements
The periodic table thus established remained until the ... they formed the bridge from a non-metallic halogen (electro-negative element) to a metallic alkali (electro-positive element).
University at Buffalo2m
UB, Berkeley Lab scientists discover new heavy-metal molecule ‘berkelocene’
The pioneering nuclear chemist Glenn Seaborg discovered berkelium at Berkeley Lab in 1949. It was one of many achievements ...
Only a Few Grams of This Element Exist—and Scientists Have Used It to Break the Rules of the Periodic Table
More than 75 years after its initial discovery, scientists have created an organometallic molecule containing the ...
The Stanford Daily4d
From the periodic table to the food we eat: ‘Chemistry in the Kitchen’ draws students in
For professor of chemistry and physics Richard Zare, the goal for CHEM 29N: Chemistry in the Kitchen is not to make students ...
BBC14h
Atomic structure and the periodic table
The periodic table - AQA Mendeleev made an early periodic table. In the modern periodic table, elements are in order of atomic number in periods and groups. Electronic structures model how ...
Where Does the Periodic Table End? Scientists “Milk” Atoms To Unveil Heavy Element Mysteries
Einsteinium-255, produced through irradiation in ILL’s high-flux reactor, provided a continuous supply of fermium-255, ...
A Radioactive Molecule That Shouldn’t Exist – But Scientists Made It Happen
A breakthrough in heavy-element chemistry shatters long-held assumptions about transuranium elements. Researchers have ...
Interesting Engineering on MSN4d
US’ new radioactive molecule discovery challenges periodic table post uranium
Scientists at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have synthesized ...
Amazon S3 on MSN10d
Preparation And Properties Of The Halogens (1959)
This film discusses the halogens, specifically chlorine, bromine, and iodine, detailing their preparation from naturally occurring salts and their chemical properties. The film demonstrates various ...
BBC8d
KS1 Maths: The 5 Times Table
The Posh Pooch has a song and movement routine to help students learn the 5 times table. This song and movement routine encourages physical activity in the classroom, while giving students the ...