Struggling with your prescribed literature?
Our Literature Study Guides provide insights and analysis of themes and characters and includes guidelines for writing your exam.
occurs when an ion in a crystal structure is replaced by a different type of ion without changing the shape of the crystal.
a group of elements that are non-reactive, monatomic gases (Group 0, 8 or 18).
the stratosphere extends from a height of 10 km to 50 km above the surface of the Earth.
a new species or substance that exists after a chemical reaction has occurred. This excludes un-...
no atoms are gained or lost during a chemical reactions.
a very small, negatively charged particle that moves around the nucleus of an atom.