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Group 2 (the alkaline earth metals) show many different trends. As you go down, the size of the atoms increases. This is due to the fact that each element has an extra full main level of electrons compare...
An ion can be an atom or a group of atoms that are charged. This means they can be positively charged or negatively charged.A positive ion is formed when the atom loses electrons. Because electrons have a...
As you go down group 1, the number of electron shells increases. This means that the outer electron is further from the attractive pull of the nucleus, and it experiences more shielding from the nucleus’ ...
Electrolysis is essentially the movement of charged ions in a solution.For example, take sodium chloride, NaCl. NaCl is the electrolyte. The electrolyte is a substance, usually a salt tha...
...solid is a pure substance or a mixture. Firstly, she would need to plot a graph of temperature against time. Temperature remains constant at the melting point. The graph will show whether the sol...
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