Question

choose the correct trend in metallic character. metallic character decreases as you move across a period from left to right and increases as you move down a group metallic character increases as you move across a period from left to right and decreases as you move down a group metallic character increases as you move across a period from left to right and increases as you move down a group metallic character decreases as you move across a period from left to right and decreases as you move down a group

Explanation:

Metallic character is related to the ability of an element to lose electrons. As we move across a period from left to right, the atomic number increases, and the effective nuclear charge increases. This causes the atoms to hold onto their electrons more tightly, so metallic character decreases. As we move down a group, the atomic size increases, and the outermost electrons are farther from the nucleus and are easier to lose, so metallic character increases.

Answer:

metallic character decreases as you move across a period from left to right and increases as you move down a group