On descending a group in the periodic table
Metallic character of elements increases
Electro negativity of elements increases
Ionization energy of elements increases
Size of elements decreases
The element that does not show positive oxidation state in its compounds is
Xe
Cl
O
F
The property which generally decreases along a period is
Ionisation energy
Atomic radii
Electronegativity
Electron affinity
The incorrect statement is
'Al' and 'Be' show diagonal relationship
Francium is radioactive
Alkali metals are good oxidizing agents
Stability of alkaline earth metal carbonates increases down the group.
Chloride of an element 'A' gives neutral solution in water. in the periodic table, the element 'A' belongs to
First transition series
Fifth group
Third group
First group
The outermost electronic configuration of the most electro negative element is
ns2np5
ns2np4
ns2np3
ns2np2
The correct order of decreasing ionic character is
Bacl2 >Mgcl2> Cacl2> Be cl2
Cacl2> Mgcl2>Becl2>Bacl2
Bacl2>Cacl2>Mgcl2> Becl2
Bacl2>Becl2>Cacl2> Mgcl2
Out of the following ________ is not isoelectronic.
Mg2+
Cl-
Na+
O2-
Addition of second electron to a neutral atom is always
endothermic process
exothermic process
reversible process
cyclic process
Metals, non- metals and metalloids are present in
d- block
f- block
s- block
p- block
