Question

iii.
1-2
a) The elements in which differentiating electrons enters into p-orbital are called p-block
elements. It contains '6' groups.
b) The general electronic configuration is ns’np!-6
c) p-block contains all non-metals, metalloids and few metals.
d) It has 6groups IIIA to VIIIA(13th to 18 group)
e) VA or 15- Pnicogens VIA or 16th-Chalcogens
VIIA or 17th-Halogens VIII or 18th-Nobelgases
d-block elements :
a) The elements in which the differentiating electron enters into penultimate shell (n-1)d
sub shell are called d-block elements. The general electronic configuration of these elements
is (n-1)dl-Iºns
b) These are placed in between s- and p-block elements. It contains 10 groups.
f-block elements :
a) The elements in which the differentiating electron enters into anti penultimate shell or
(n-2)f subshell are called f-block elements. The general electronic configuration
(n-2)/(n-1)dº-ns?
Transition elements :
The elements in which two outermost sub shells are incompletely filled [(n-1) and njei
in atom state or in dipositive oxidation state(+2) are called transitional elements.
The general electronic configuration is (n-1) d'ºns'2
IIB elements (Zn, Cd, Hg) are not transitional elements due to fully filled (n-1)d or
Characteristic nronerties: Due to a) Vacant or partially filled d-orbitals b) Small a
7​

Answer 1

Answer:

33334

Explanation:

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