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a substance that does not allow heat or energy transfer.
a crystal lattice of positive kernels in a sea of delocalised electrons to which they are...
sulfur dioxide is extremely soluble in water, forming sulfurous acid. This acid oxidises to form...
the number of protons in the nucleus of an atom, which determines which element it is. In a...
the transfer of electrons from one atom to another atom to form positive and negative ions...
states that the p, d and f orbitals can only take on a second electron when all the equivalent...