Write an essay on s,p,d,f block elements
Answers
HEY frnd here is ur ans......
S - BLOCK=> The elements in which the last electron enters the S orbital of their outermost energy level are called as block elements . It consists of element of group 1 and 2 having the ground state electronic configuration of outermost shell as ns1 and ns2 respectively. where and stands for outermost energy cell the elements corresponding to ns1 configuration are called the alkali metals while those corresponding to ns2 configuration are called alkaline earth metals has the general electronic configuration of S block elements may be expressed as ns^1-2.
P -BLOCK=> The elements in which the last electron enters the P orbital of the outermost energy level are called p block elements .The elements of group 13 to 18 involving addition of one (ns^1np^1) ,two (ns^2np^2),three (ns^2np^3),four (ns^2np^4),five(ns^2np^5),six(ns^2np^6)electrons respectively in p orbitals and S orbitals are already filled in their atoms constitute P block the general electronic configuration for the atoms of this block may be written as ns^2np^1-6.
D - BLOCK => The elements in which the last electron enters the d orbital of their last but one called penultimate energy level constitute D Block Elements this block consists of the elements line between s and p block starting from fourth period and onwards them constitut group 3 to 12 in the periodic table in this element the outermost shell contains one or two electrons in their S orbitals and as but the last electron enters the last but one D subshell that is (n-1)d the general electronic configuration of the atoms of D block may be written as (n-1)d^1-10 ns^0-2.
F - BLOCK=> the elements in which the last electron enters the f orbitals of the atoms are called F block elements in this element the last electron is added to the third to the outermost called anti penultimate energy level and -2 if this consists of two series of elements placed at the bottom of the periodic table first them first series follows lanthanum Z is equal to 57 and the elements present in this series are called lanthanoids and the lanthanides these are also called rare Earth elements 2nd series follows actinium a c z is equal to 89 and the elements present in this series are called actinoids and the actor needs this hour of radioactive nature the general electronic configuration of F block elements may be written as (n-2)f^1-14(n-1)d^0-2 ns^2.
Hope it helps you☺☺
Thankyou✌✌
Answer:
S - BLOCK: Elements are referred to be block elements when their last electron enters the S orbital of their outermost energy level. It is made up of elements from groups 1 and 2 whose ground state electronic configuration for the outermost shell is, respectively, ns1 and ns2. The alkali metals are those corresponding to the ns1 configuration, whereas the alkaline earth metals are those corresponding to the ns2 configuration. The overall electrical configuration of S block elements may be represented as ns1-2.
P - Block elements are those in which the last electron reaches the P orbital of the outermost energy level.
The group 13 to 18 components that include adding one (ns1np1), two The P block is made up of the atoms (ns2np2), (ns2np3), (ns2np4), (ns2np5), and (ns2np6), which have electrons in p orbitals and S orbitals that are already filled, respectively. The basic electrical configuration for these atoms may be expressed as ns2np1-6.
The elements in the D - Block are those in which the last electron reaches the d orbital of their last but one called penultimate energy level. This block is made up of the elements that make up group 3 to 12 in the periodic table and are located between the s and p blocks. In this element, the outermost shell has one or two electrons in their S orbitals, and the last electron enters the last remaining D subshell, which is (n-1)d. The D block's atoms may be expressed as (n-1)d1-10 ns0-2.
F : The elements in which the last electron enters an atom's f orbitals are known as F block elements. In this element, the final electron is added to the third, outermost level, which is known as the anti penultimate energy level, and -2. If there are two series of elements at the bottom of the periodic table, the first series comes after lanthanum Z, which equals 57. The elements in this series are known as lanthanoids and lanthanides; they are also known as rare earth elements. Actors require the second series, which follows actinium and has elements known as actinoids with a c-z value of 89. The typical electrical configuration of F block elements may be expressed as (n-2)f-1-14(n-1)d-0-2 ns-2 for an hour of radioactive nature.
#SPJ2