By Joshua Tompsett
Why atoms for bonds:
As you may know atoms have a nucleus, which is the cluster of neutrons and protons at the core of the atom, then around that electrons circling in rings with 2 and if it has more a ring of 8 and the another ring of 8, there is more but for this you only need to know that. So not all elements have enough to fill up a ring. Take oxygen, it only has the first full ring and then it is missing the last two from the second ring. This makes reactive therefore it is trying to finish or lose the ring to make it stable, but there are one type of elements that are naturally stable. These elements are in row 8/0 and are called the Noble gasses.
A ionic compound is a group of elements that have been bonded together through an ionic reaction. This is a reaction between a metal and non-metal, where said metal gives electrons to the non-metal, so that they have full rings only as mentioned in the paragraph prior. This means that the metal will have a positive charge and the non-metal a negative charge. A good example is salt, Sodium Chloride, the they form a lattice of positive and negative ions, which is the word for an atom when it loses or gains electrons generally via ionic bonding. Another thing worth noting is that this make strong bonds. Also the lose or gain of electrons creates a charge equal to the given or received, 1 given is a +1 charge and 1 received is -1 charge. In an ionic compound there has to be an overall charge of 0 which is counted up by adding or subtracting the amounts.
While one way elements can bond is via the gifting and receiving of electrons another way that elements can become stale is through the sharing of electron so that they use each others electrons to complete there ring. A key example of that is H2 which is how hydrogen travels in the air. This is because the hydrogen is after a full ring and they share there ring so that they both have a full ring. While elements can just share one electron, not all do. Some share more. Another example is water, it has two hydrogens sharing there electron with the Oxygen which is two short of a ring. Covalent bonding is generally weaker than ionic bonding.
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