Which of the following types is included in the leftmost group of the periodic table?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Base metals.
Base metal or Alkali metals belong to the s-block elements occupying the leftmost side of the periodic table.
Alkali metals readily lose electrons, making them ;the most reactive elements on earth.
In general ‘alkali’ refers to the basic or alkaline nature of their metal hydroxides.
The compounds are called alkali metals because when they react with water they usually form alkalies which are strong bases that can easily neutralize the strong acids.
Alkali metals have an outer electronic configuration (ns1).
They occupy the first column of the periodic table.
Alkali elements are Lithium(Li), Sodium(Na), Potassium (K), Rubidium (Ru), Cesium (Cs) and Francium (Fr).