The electrical conductivity of which of the following elements are very high?
Alkali metals
Halogens
Transition metals
Inner transition metals
Transition elements are:
D-block
P-block
S-block
F- block
From top to bottom, atomic ratio:
increases.
decreases.
remain the same.
first increases then decreases.
Group O elements are:
Alkaline earth metals
Noble gases
Group I and II elements are called:
D- block
S - block
F - block
Ionization energy is high for:
Group I
Group O
Group IV
Group V
Ekaboron in Mendeleev's label was later discovered and is called:
Gallium
Silicon
Scandium
Indium
The first period consists of:
8 elements
2 elements
16 elements
32 elements
Group II elements are also called:
'Law of Triads' was first proposed by:
Dobereiner
Mendeleev
Newoand
Moselay
