Correct option is A
The correct answer is: (a) Metallic character decreases across a period and increases down a group
Explanation:
· Metallic character refers to an element’s tendency to lose electrons and form positive ions (cations).
· Across a period (left to right), effective nuclear charge increases, reducing metallic nature.
· Down a group, atomic size increases and ionization energy decreases, hence metallic character increases.
Information Booster:
· Metals are good conductors, malleable, and ductile.
· Most metallic elements are found on the left side of the periodic table.
· Non-metals dominate the right side of the periodic table.
· Alkali metals (Group 1) show strong metallic character.
· Cesium and Francium are among the most metallic elements.
· The metallic character trend is opposite to that of non-metallic character.