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Magnesium in a metal, whereas oxygen is a non metal - therefore magnesium oxide is formed by an ionic bond (if it were 2 non metals it would be a covalent bond). It is important to understand that atoms p...

In an exothermic reaction, energy is released from the system and into the surroundings, the system loses energy so the surroundings gain energy. The surroundings gain energy as heat and therefore there i...

Covalent molecules such as oxygen and ozone absorb different ranges of UV light mainly due to differences in the types of bonds that make up their structure. It is therefore useful to first consider the L...

"Electronegativity is the power of an atom to attract the electron density in a covalent bond to itself"
In order to understand electronegativity we mu...

Graphite is made from layers of carbon which contain many 6-membered carbon rings (hexagonal). Each layer is held together by each carbon being covalently bonded to 3 other carbon atoms and this leaves a ...