Scientists Flashcards
1
Q
What did Medeleev do?
A
He ordered the Periodic Table using the Atomic Mass. He guessed what a few elements would be, which makes him the founder/creator of the Periodic Table.
2
Q
What did Mosely do?
A
He ordered the Periodic Table using the atomic number. This is what we use today.
3
Q
What was the Triad trend to group the elements?
A
Elements came in groups of three. The mean of two numbers equalled the middle number.
