Lab 7.4

Elements in the same group share similar properties than elements in the same period. You know this because in the lab we saw that the elements that we in the same groups that had been tested turned out to have the same results.We have concluded that they are more similar than elements in the same group.
     Elements in the same group share the same number of valence electrons. ]Which leads to them having similar chemical properties. Because the amount of electrons, or the electron configuration had a big impact on on how elements differ. In groups, elements share the same number of valence electrons, which really means that they have the same amount of distance from the nucleus.
    

As an atom of sodium reacts with an atom of non-metal it loses the electrons. When this happens it becomes a positive ion. The electrical charge of the ion is +1. The soduim ions electron configuration becomes similar to the element neon. After the atom loses electrons and becomes an ion it becomes more stable.
    

Pure sodium can be obtained by mixing both NaCl and the right amount of CaCl to lower the melting point, this process produces  pure sodium metal.