Over a million students use our free study notes to help them with their homework
Group 7 of the periodic table contains all the elements known as halogens. They all have 7 valence electrons (hence group 7!) in their outer shell (insert diagram or prop to show what the outer shell sign...
Group one elements are all metals. They are known as the Alkaline Metals. All of these element atoms have one electron on their outer shell. This means that, when they react, they lose this one electron t...
Acids react with metals to give a salt and hydrogen gas.Nitric acid + magnesium --> magnesium nitrate + hydrogen2HNO3+ Mg --> Mg(NO3)2 +H2
An atom is a neutral particle, an ion is a charged particle.Taking a sodium (23Na) and sodium ion (Na+) as an example:Firstly, we need to break down both into their subatomic particl...
Graphite is structured as layers of carbon atoms arranged in 6 atom planar rings. Each carbon atom forms three bonds to neighbouring atoms meaning that each eatom has an unbonded alectron. This unbonded e...
←
119
120
121
122
123
→
Internet Safety
Payment Security
Cyber
Essentials
