This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
The are multiple numbers in the periodic table, these are the group numbers, period numbers, atomic mass, electron and the atomic number

Group numbers, are what we see vertically in the periodic table.
Period numbers, are what we see horizontally in the periodic table. 
Atomic Number, is what we see over the symbol of every element and it is the number of protons.
Atomic Mass, is what we see under the symbol of every element and it is the mass of an element.
Electron, is what we see on the top right of every element's block or at the right side of the element symbol. 

1 5 1
hmmmm very informative,i have to say.You are smart!
Thank you :)