All Atomic structure articles – Page 7
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ResourceOn This Day - Jul 09 : Ben Mottelson was born
Together with Aage N. Bohr and James Rainwater, Mottelson developed models of the atomic nucleus that considered the effects of internal structure on properties such as charge distribution. The trio won the 1975 Nobel Prize in Physics.
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ResourceOn This Day – Sep 19 : Chemical structure defined
Chemical structure refers to the way atoms are arranged within molecules. Butlerov realised that chemical compounds are not a random cluster of atoms and functional groups, but structures with definite order.
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ResourceOn This Day - Oct 20 : James Chadwick was born
By bombarding the element beryllium (Be) with alpha particles, he discovered a neutral particle in the atom’s nucleus - the neutron. Chadwick subsequently led the UK’s research team investigating the atomic bomb in World War II.
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ResourceOn This Day – Jul 24 : Sir James Chadwick died
He received the Nobel Prize in Physics 1935 for his discovery of the neutron, a subatomic particle with zero electrical charge. Neutrons are found in the nucleus of all elements (except hydrogen) along with protons, which carry a positive charge.
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ResourceOn This Day - Apr 25 : Wolfgang Pauli was born
He is most famous for the Pauli “exclusion principle”, which states that in an atom no two electrons can occupy the same quantum state simultaneously. He was awarded the Nobel Prize in Physics in 1945 for his work.
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ResourceOn This Day - Feb 29 : Bohr issued bowl of balls
Danish physicist Niels Henrik David Bohr made fundamental contributions to the understanding of atomic structure and quantum mechanics, for which he received the Nobel Prize in Physics in 1922.
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ResourceOn This Day - Apr 30 : Discovery of the electron
Thomson was studying the properties of cathode rays, and found that they were over 1,000 times lighter than the hydrogen (H) atom and that they were the same mass irrespective of the parent atom. He called these particles “corpuscules”, but scientists later dubbed them “electrons”.
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ResourceOn This Day - Oct 31 : Robert Mulliken died
He was awarded the 1966 Nobel Prize in Chemistry for his work on chemical bonds and describing the electronic structure of molecules using the molecular orbital method. His research still leads this field.
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Resource28 o bosau cemeg i fyfyrwyr 14–16 oed
Defnyddiwch y posau hyn, sydd wedi’u hysbrydoli gan sudoku, ynghyd â’r taflenni gwaith a’r atebion y gallwch eu hargraffu, i helpu pobl ifanc 14–16 oed i gyfnerthu eu dealltwriaeth o gysyniadau cemegol allweddol.
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Resource28 chemistry puzzles for 14-16 years
Use these sudoku-inspired puzzles with printable worksheets and answers to help 14–16 year olds consolidate their understanding of key chemical concepts.
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Resource45 chemistry puzzles for 16-18 years
Try these chemistry puzzles based on sudoku to help 16–18 year old students consolidate their knowledge about key topics, with printable worksheets and answers.
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FeatureChemical Bonding
A masterclass in teaching the topic of bonding, basing chemical explanation on physical forces
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FeatureFour Curie centennial elements
The four Curie elements provide us with an interesting tour of the bottom of the periodic table
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ReviewChemistry3: introducing inorganic and physical chemistry
Andrew Burrows, John Holman, Andrew Parsons, Gwen Pilling and Gareth Price
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FeatureIda Noddack and the missing elements
Distinguished women chemists were rare in the early 20th century, but their contributions to chemistry are of great significance. Ida Noddack's scientific career centred around her intensive study of the Periodic Table, and resulted in her discovery, with husband Walter Noddack and physicist Otto Berg, of the metal rhenium, and of nuclear fission in the search for element 93.
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Lesson planAtoms and atomic structure: a ‘similar and different’ activity | 16-18 years
Help students consolidate their ideas about atoms and atomic structure, working in pairs to identify key concepts, using this lesson plan for 16–18 year olds.
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Lesson planUnderstanding the structure of atoms | 14–16 years
Check your learners’ understanding of atomic structure using self assessment in this lesson plan with activities