clearly not B.
No two elements have the same atomic number.
Geez - look at the table!
Elements are arranged in the periodic table based on various patterns. For example, elements found in the rows near the top
A.
have higher atomic numbers than the elements in the rows near the bottom.
B.
all have the same atomic number.
C.
have lower atomic numbers than the elements in the rows near the bottom.
D.
have the same atomic numbers as the elements in the rows near the bottom.
b
3 answers
HAAAA YOU STUPID
oliver queen.....you have not failed this test