Which element acts as a strong reducing agent?

Hint: An element is a substance whose atoms all have an equivalent number of protons: different from claiming this is often that each one of a specific element's atoms have an equivalent number. Elements are chemically the only substances and hence can't be weakened using chemical reactions.

Complete answer:
The elements which readily lose the electron act as a robust reducer. Na is the strongest reducer, while Cl- is the weakest reducer.
Reducing agent
A substance that loses electrons to other substances during a redox reaction and gets oxidized to the upper valency state is named a reducer.
Reducing agents tend to offer away electrons. The metals of the s- block within the table are said to be good reducing agents.
All the great reducing agents have the atoms with low electronegativity and an honest ability of an atom or a molecule to draw in the bonding electrons and therefore the species having minimal ionization energies.
Lithium is an element with number 3 and a logo Li. It seems like a soft and silvery-white metal and belongs to the alkali metal group of the table. It's said to be a robust reducer when placed in solutions.

Note:
The relative strengths of reducing agents are often inferred from their standard electrode potentials. The strongest reducing agents are shown from the quality electrode table. Lithium, having the most important negative value of electrode potential, is the strongest reducer.