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The pH scale is a measure of how many H⁺ ions...

To work out the shape of the SF6 molecule we can use a simple equation which allows us to work out the number of electron pairs. The equation is (old group + electrons donated +/- charge) / 2. If the char...

Milgram’s study in 1963 aimed to explore the idea of obedience to see whether people would blindly follow orders from an authority figure. He gathered 40 participants aged 20 to 50 who volunteered from an...

As you move across the period you are adding one more proton which increases the nuclear charge, you are also adding one more electron, however, the shielding provided by the extra electron is less than t...

Solving simultaneous equations by elimination; firstly you would multiply the first equation by 4 to get another equation which we will name (3), and multiply the second equation by 3 to get another equat...