But what is the magic number?

Hint 1 of 6:

Numbers?

Hint 2 of 6:

But I don't see any numbers around here.

Hint 3 of 6:

Well, there are a few on the periodic table chart.

Hint 4 of 6:

Are the words from the emerald pin on the chart?

Hint 5 of 6:

Yes, Ti and Xe are there.