the electrons in atoms of four element a b c and d are distributed in three shells having 1,3,5,7 electrons in outermost shell respectively state the period in which these element can be placed in Modern Periodic Table.write the electronic configuration of atom of A&D and molecular formula of the compound formed when A and D combine
Answers
Answered by
1
Electronic configuration :
A= 2,8,1
B=2,8,3
C=2,8,5
D=2,8,7
Period = number of shells = 3rd period
Molecular formula of compound formed by A and D =AD (NaCl)
Thank you...
A= 2,8,1
B=2,8,3
C=2,8,5
D=2,8,7
Period = number of shells = 3rd period
Molecular formula of compound formed by A and D =AD (NaCl)
Thank you...
Anonymous:
my pleasure
wait A has only 1 outermost electron so it must belong to first period
no, period = number of shells
and there are 3 shells in each
ok
OK wait
let me modify
got it u r right as there are three shells
don't modify its absolutely right
yes
Answered by
2
Hey friend !!
Here is your answer.
---------------------------------------------------
The period is equal to the number of shells.
So , there are three shells which means that the period will be 3.
--------------------------------------------------
Electronic configuration of A -- 2,8,1
Electronic configuration of B -- 2,8,3
Electronic configuration of C -- 2,8,5
Electronic configuration of D -- 2,8,7
----------------------------------------------------
The compound formed by A & D will be
==> AD
----------------------------------------------------
Hope it helps .
#pragya_singh
Here is your answer.
---------------------------------------------------
The period is equal to the number of shells.
So , there are three shells which means that the period will be 3.
--------------------------------------------------
Electronic configuration of A -- 2,8,1
Electronic configuration of B -- 2,8,3
Electronic configuration of C -- 2,8,5
Electronic configuration of D -- 2,8,7
----------------------------------------------------
The compound formed by A & D will be
==> AD
----------------------------------------------------
Hope it helps .
#pragya_singh
yes its right aarohi
the third element is boron..and it belong to period 2
it is given that there are 3 shells
i m talking about first element
if you move futher the periodic table then the period will change
and these are valence electrons
its not given in the question that those are valence electrons..its given that these are electron present in the outermost shell
valence electrons and electrons in outermost shell is the same thing dear
yaaa u r right aarohi
pragya there needs a correction
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