Save guides, add subjects and pick up where you left off with your BBC account. Electrons orbit the nucleus. An atom has a neutral charge, because it contains the same number of positive protons ...

For more than 100 years, scientists have used a method called crystallography to determine the atomic structure of materials. The method works by shining an X-ray beam through a material sample and ...

Photo: Niels Bohr's research notes for his new atomic theory Rutherford's find came from a very strange experience. Everyone at that time imagined the atom as a "plum pudding." That is ...

Now, for the first time, scientists have uncovered the atomic structure of φTE, revealing a possible mechanism of infection that may be more complex than previously thought. Belonging to one of ...

For more than 100 years, scientists have used a method called crystallography to determine the atomic structure of materials. The method works by shining an X-ray beam through a material sample ...

Non-metals are poor conductors because they have very few free electrons. This makes it difficult for electrical current to flow through them. Insulators such as plastic or rubber are used to ...