Asked by Taylor

what happens to the reactivity of metals from left to right across the periodic table?
Answered by DrBob222
They become less reactive. Na is more reactive than Mg which is more reactive than Al which is more reactive than Si.
Answered by Nirajan
The reactivity decreases as the number of valence electron increases. So metals with low number of valence electron can easily lose their electron as compared to metals with large number of valence electron.
Answered by Jeff
1) B. Metals on the right have more protons, causing valence electrons to be held more strongly.

2) B. by gaining electrons

3) B. They are very nonreactive

4) A. Cs and Br

5) A. Rb loses an electron
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