The greatest credit for producing chemistry's most famous organization of elements is always given to:
Dobereiner
Moseley
New lands
Mendeleev
The vertical columns in the periodic table are called:
Group
Period
Family
Class
Group I and II elements are called:
D- block
P-block
S - block
F - block
Group II elements are also called:
Halogens
Noble gases
Alkali metals
Alkaline earth metals
The scientist who showed that atomic number is the fundamental property of an element.
Bragg
Peount
Hund
Ekaboron in Mendeleev's label was later discovered and is called:
Gallium
Silicon
Scandium
Indium
'Law of Triads' was first proposed by:
Newoand
Moselay
Ionization energy is high for:
Group I
Group O
Group IV
Group V
All the Group II elements have an outer shell configuration of:
S
S2
P2
D1
The first ionization energy of neon is higher than that of:
Chlorine
Helium
Fluorine
Bromine
