Explanation:
The tendency of metals to lose electrons is a measure of their electropositivity or metallicity.
Electropositivity is a measure of the tendency of atoms of an element to lose electrons. It is closely related to ionization energy and electronegativity of an element.
- The lower the ionization energy of an element, the more electropositive or metallic an element is.
- Across a period, from left to right, electropositivity or metallicity decreases and from top to down a group, it increases.
- Metals are found on the left of the periodic table.
