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Describe how elements of the periodic table are arranged relating to their atomic structure. (6 marks)

Elements in the periodic table are arranged by increasing atomic number (number of protons). Atomic number of elements steadily increases across a period (horizontal rows of the periodic table). Elements in ...
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Answered by Jake G. • Chemistry tutor
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Explain three differences between particles in a solid state and particles in a gaseous state.

Particles in a solid state are packed very close together whereas in a gaseous state they are very far apart.Particles in a solid state have a regular, structured pattern whereas gaseous particles are random...
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Answered by Frankie L. • Chemistry tutor
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Describe the process of aerobic respiration.

Respiration is the process by which cells make energy. Aerobic respiration uses oxygen to make energy. Respiration involves a series of reactions. The overall equation for the reaction is:Oxygen + Glucose —&...
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Answered by Madlen H. • Biology tutor
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Describe the process of evolution by natural selection as developed by Charles Darwin in the 1800s.

Evolution by natural selection occurs when random mutations in the genome of an organism causes phenotypic traits (observable characteristics or traits) to be different between individuals of an organism. Th...
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Answered by Jack W. • Biology tutor
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How do I structure an essay?

Once you have cracked the formula for doing an essay, you will start to see your grades get better and better. I always remember what I have to write by thinking of PEEL and FSL. But what do these have to do...
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Answered by Evie R. • English tutor
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