To Edit or Update an existing Direct Deposit entry, click on the Edit button located to the right of the account line you wish to edit or update. Edits allowed for
In fact, hydrogen (which is a gas at room temperature) is not included in the alkali metals, even though it is located in Group 1 on the periodic table. For the metals in this group, the melting and boiling temperatures decrease with increasing atomic number.
Sodium, magnesium and aluminium all have metallic structures, which accounts for their electrical conductivity and relatively high melting and boiling points. Melting and boiling points rise across the three metals because of the increasing number of electrons which each atom can contribute to the delocalised sea of electrons. The atoms also get smaller and have more protons as you go from sodium to magnesium to aluminium. The attractions and therefore the melting and boiling points ...