How did scientists make sense of the characteristics of elements? What is the periodic table? How are elements classified? What are the major categories of elements? What are exceptions regarding the periodic table?

Periodic Table...

Cybersecurity incidents demand quick thinking and decisive responses. In this exercise scenario, a fictional company is faced with some tough choices when their security is compromised.

Learn about the energy levels and electronic configurations of atoms of different elements in this video from the Properties of Matter chapter of the Virtual School GCSE Chemistry.

Learn the basics about Energy Levels and Electron Configuration. Where do you find energy levels? How do you recognize electron configuration? Find out more in this video!

Learn the basics about the ionic bonding of calcium chloride, lithium fluoride and potassium oxide, as a part of the overall properties of matter topic. An ionic bond is defined as the electrostatic attraction between oppositely charged...

We've now learned about Isotopes. Now here are some examples of simple calculations involving isotopes that you'll need to know for the science GCSE. Find out in this video from the Properties of Matter chapter of the Virtual School GCSE...

In this video we'll be looking at zinc(Zn), copper (Cu), potassium (K), calcium (Ca), iron (Fe), lithium (Li), magnesium (Mg) and sodium (Na) and their reaction to water and acid. You may have noticed that most of the elements in the...

The best way to make a fire tornado (in my opinion!) All you need are 2 glass half-cylinders. No moving parts, no fans, no squeaky bearings, just fire and forget!<br/>