56.4k views
1 vote
HELPPPP !! I need help I'm so stressed out please please please help us

HELPPPP !! I need help I'm so stressed out please please please help us-example-1

1 Answer

2 votes
He used patterns, he organized the periodic table by patterns and left blank spots for us to fill in the future.
User Sam Doshi
by
6.7k points