Question

for metals, the reactivity ____________ as you go from left to right in a period on the periodic table. increases decreases stays the same rewatch submit

Explanation:

As you move from left to right in a period on the periodic table, for metals, the atomic radius decreases (due to increasing nuclear charge which pulls electrons closer). Metals react by losing electrons. With a smaller atomic radius, it is more difficult for metals to lose electrons (as electrons are held more tightly by the nucleus). So, their reactivity decreases.

Answer:

Decreases