Workspace design

i am creating an periodic table. i´m using a table arrangement and many buttons.

the problem is that i dont have enough space to put the buttons on th screen .

You'll have to shrink your buttons down.  I suggest you shrink the font size, or, have sections of the table on other screens, and use the main screen (screen1) as a map to get to all the different areas on your screen.

It depends on how many elements you want to show at once. A suggestion is that you put a scroll mechanism so that at any one time you are displaying say 30 elements and then each scroll shows the next 30 etc. Or show them in groups e.g. transition metals etc. This way you don't need as many buttons.