Question

What is the most common oxidation state of alkali metals?

Answer 1

Metals are minerals or compounds that spontaneously grow under the Earth's crust. The majority of metals are lustrous or gleaming. Metals are inorganic, because they are made of materials that have never been alive. Metals are natural compounds of the earth's crust that are present in the form of metal ores that are connected with each other as well as a variety of other elements. They're also found in the rocks washed by surface and groundwater, as well as in air particles.

Complete answer:
The chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr) make up the alkali metals (Fr). They make up group 1, which is located in the s-block of the periodic table, along with hydrogen. The outermost electron of all alkali metals is in an s-orbital configuration; as a result of this mutual electron configuration, their characteristic properties are very similar. Indeed, the alkali metals are the best example of periodic table group patterns in properties, with elements displaying well-defined homologous behaviour. After its leading element, this family of elements is known as the lithium family.
At normal temperature and pressure, the alkali metals are all lustrous, light, and extremely reactive metals that readily lose their outermost electron to form cations of charge +1. Because of their softness, they can all be sliced conveniently with a knife, revealing a gleaming surface that tarnishes quickly in the air due to oxidation by ambient moisture and oxygen (and in the case of lithium, nitrogen). They must be kept under oil to avoid reaction with air due to their high reactivity, and they are only present in nature as salts, never as free elements. The fifth alkali metal, caesium, is the most reactive of all elements.
Alkali metals' most typical oxidation state is +1. Alkali metals have a $n{s^1}$ exterior electrical configuration.
They will easily lose this electron, becoming a unipositive ion in a solid noble gas structure.
As a result, the right answer is 1.

Note:
The noble gases (historically known as inert gases; also known as aerogenes) are a group of chemical elements with identical properties; they are all odourless, colourless, monatomic gases of very low chemical reactivity under normal conditions.