1
Q
Rutherford-
Bohr-
Chadwick-
A
r-nuclear model (nucleus)
b-planetary model (energy levels)
c-neutrons
2
Q
What did Mosley discover?
A
protons
3
Q
What did Mendeleev arrange elements by?
A
atomic number
4
Q
What type of densities do transition metals have?
A
high
