3A+Task+1+Brett



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This effect is known as Van Der Waal forces. [|This youtube video] shows a short visualisation of the effect, allowing you to get an idea of what is actually happening and visualise it.









** Conclusion: ** For groups one and two, the melting points increase as you go **up** the group due to the metallic bond strengthening. For the non-metals and transition metals the melting points increase as you go **down** the group. As you go across a period, the melting point increases until you hit group 6, before it begins to decrease again. The sites I used for references are linked throughout the page. Click the little green arrows for links to the page and more info.