No. An alkali is a compound: the hydroxide of al alkali metal.
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The atom of an alkali metal, such as lithium, sodium, or potassium, typically contains one valence electron in its outermost shell. This makes alkali metals very reactive and eager to lose this electron to form a positive ion.
The alkali metal atom with a valence shell configuration of 6s1 is francium. It is located at the bottom of the alkali metal group on the periodic table, known for its high reactivity and radioactivity.
Lithium is in the second period. It is an alkali metal. It has 2 rings of electrons.
Potassium (K) is the only alkali metal that is diatomic in its natural form. Each potassium atom forms a bond with another potassium atom to create a diatomic molecule (K2).
As we move down the group, the melting point decreases.