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The Noble GasesThe boiling points increase as you go down the group. This is because the atoms get larger and the intermolecular forces become more numerous and stronger hence more energy is needed to bre...
As you go across the period from left to right (excluding noble gases), electronegativity increases. This is because the nuclear charge increases (Atomic Number/number of protons) and atomic radius decrea...
The First Law of Thermodynamics is that energy cannot be created or destroyed, it can only change from one form to another. For example, a boulder perched at the top of a hill has gravitational potential ...
A covalent bond is when the nuclei of two different atoms share a bonded pair of electrons.
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