Question

Each successive element on a period table going from left to right across a period has what?

Answer 1

One more proton.........

Explanation:

One more proton, one more positively charged nuclear particle, than the element to ITS left (as we face the Table). And since atoms are neutral, it must also have an EXTRA electron to maintain this neutrality.

And look at `Al, Z=13; Si, Z=14; P, Z=15; S, Z=16;.....etc.`