Chemistry, asked by hhh302, 1 year ago

for 50points
four elements are represented by a b c d with atomic numbers 9 8 12 and 16 respectively. identify the element
a. having 7 valence electron
b. having valency 0
c. a metal
d. feature of bond and formula of compound between c and d
f. among b c d which have the highest atomic size
solve correctly for 25 brainlist

Answers

Answered by TheKingOfKings
1

Answer:

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Atomic Number :=

a = 9

electronic configuration : k = 2

==================== l = 7

b = 8

electronic configuration : k =2

====================l = 6

c = 12

electronic configuration : k =2

==================== l = 8

====================m = 2

d = 16

electronic configuration : k = 2

====================l = 8

====================m = 6

So A is having 7 electrons in outermost shell

No element is having 0 valency

c is metal because two electrons are present in the outermost shell it will lose these two electrons to form cation

outermost electrons

C = 2

d = 6

c3d

the bond will be ionic bond c is metal whereas d is non metals of ionic bond will be formed by the transfer of electrons from C to D

Atomic size inversely proportional to Atomic number

= 9 atomic less so size is highest

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Answered by Anonymous
1

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Refer to the attachment!!

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