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Down a group of the periodic table, the atomic radius increases. As we go down a group, the outermost electron of an atom is placed in a shell that is further from the nucleus. This means it experiences the ...

The best method of answering this question would be to look at the energy of the ball at the moment it is thrown and at the moment it reaches its highest point. When the ball is thrown, initially all the ene...

Solving cubics is an interesting problem: while there is a formula which can find the roots of every cubic equation, it isn't taught and is not generally worth learning. Instead, exam questions will often gi...

The first sentence should immediately set out something you have done and how it directly relates to your course. Why? Some people open with a quote, or a similar "attention grabbing" flourish. Giv...

It's a common misconception that more diagrams are always better. In fact, a diagram that is ill-defined or poorly linked to the question will not add anything to your answer and it can demonstrate a lack of...