Hey how are you can you help me with my quiz?
Mendeleev organized his table by atomic mass, rather than atomic radius. He was able to extrapolate where certain undiscovered elements should be on the table based on that.
For example, he said that since Calcium has mass of 40g and Titanium has a mass of 48 g, there must be some element between them with atomic mass of 44 g. That was later discovers to be scandium.
Hope this helps
Answer:
The first one is a divergent plate boundary.
The second is a convergent plate boundary.
The third is a transform plate boundary.
Explanation:
Cu =63.5
2 times N =28.02
6 times O =96
96=63.5=28.02=127.07
122/127.07=.96 molecules
