All Atomic structure articles – Page 5

Opinion
Five ideas in chemical education that must die: The atomic orbital conundrum

2015-08-11T08:48:00Z

Are 4s atomic orbitals preferentially occupied and ionised?
Feature
Representing molecular behaviour

2015-05-11T00:00:00Z

Roy Tasker explains how molecular animations help students
Resource
Covalent bonding

This activity seeks to develop an understanding of covalent bonding in terms of energetic stability rather than full shells.
Resource
The atom detectives

This resource presents chemists as real people and not stereotypical ‘mad scientists’ whose lives are completely dominated by science.
Resource
Elements infographics

In association with Compound Interest

A collection of visually stimulating and informative infographics about the elements, which would make a valuable addition to any science classroom.
Opinion
Chemical Bonding Confusion

2014-04-07T12:29:00Z

Some thoughts on the sources of confusion around chemical bonding having read Stephenson and Warrens' article in this month's Education in Chemistry
Resource
Metals: problem solving challenges

A series of activities to develop understanding of elements, ions, reactivity series, metal extraction, displacement reactions and oxidation/reduction
Feature
The trouble with the aufbau principle

2013-11-07T00:00:00Z

Generations of teachers are misleading their charges by teaching a sloppy version of the aufbau principle, claims Eric Scerri
Resource
Atomic Structure: video clips and resources

Video clips and accompanying resources on atomic structure and the periodic table
Elements
Neon

2013-05-01T00:00:00Z

John Emsley looks at the element that shines brightly and keeps cool but continues to puzzle
Resource
On 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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On 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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On 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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On 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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On 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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On 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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On 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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On 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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On This Day - Mar 07 : The atomic nucleus revealed

The New Zealand chemist explained that when firing alpha particles at a thin sheet of gold, some particles bounced back. From this he deduced an atom has a hard, dense, positively charged centre: the nucleus. Related resources: Understanding how atoms are made up Royal Institution Christmas Lectures® 2012: ...
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On This Day - Jun 07 : Robert Mulliken was born

He won the 1966 Nobel Prize in Chemistry for developing the molecular orbital theory. Mulliken carried out the “fundamental work concerning chemical bonds and the electronic structure” used to determine the molecular structure of a compound.