Classification Of Elements And Periodicity In Properties

Chemistry
8639 Views

In Mendeleev table, the triad of VIII group is :

A
Ru, Rh, Pd
B
Cu, Ag, Au
C
N, O, F
D
Tl, Pb, Bi
Medium
View solution>

All elements of the same group will have:

A
same electronic configuration
B
similar outer electron configuration
C
same ionization potential value
D
different chemical properties
Medium
View solution>

Identify the property which does not reflect the periodicity of the elements.

A
Bonding behaviour
B
Electronegativity
C
Ionization potential
D
Neutron-proton ratio
Medium
View solution>

The low electron affinity value of nitrogen is due to :

A
small size
B
high nuclear charge
C
half-filled 2p subshell
D
high metallic character
Medium
View solution>

Which of the following has zero electron affinity?

A
Oxygen
B
Fluorine
C
Nitrogen
D
Neon
Medium
View solution>

The electron affinity values (kJmol) of three halogens and respectively are , and . Then and respectively are :

A
and
B
and
C
and
D
and
Medium
View solution>

Considering the chemical properties, atomic weight of was corrected based on:

A
electronic configuration
B
valency
C
atomic number
D
both B and C
Medium
View solution>

In a period, elements are arranged strictly in a sequence of:

A
decreasing charge in the nucleus
B
increasing charge in the nucleus
C
constant charge in the nucleus
D
equal charge in the nucleus
Medium
View solution>