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GCSE answer: Butane is a larger molecule than ethane meaning that the intermolecular forces between its molecules are stronger. In order for a compound to boil these intermolecular forces need to be overc...
No atoms are lost or made during a chemical reaction, so the total mass of the products is equal to the total mass of the reactants.
Student drawings will indicate a central nucleus with 6 neutrons and 6 protons, as well as 6 surrounding electrons in one shell.
The three subatomic particles are electrons, protons and neutrons. Protons are positively charged and have a relative mass of 1 whilst neutrons are neutral in charge and also have a positive charge of 1. ...
Protons have a +1 charge and electrons have a -1 charge. The overall charge on an atom is 0, therefore there must be an equal number of protons and electrons in an atom so that the charges cancel out. So ...
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