Question

the distribution of electrons in he sheel k l m of elements alumium has 2,3,8 as pectively then the valency of laminium is
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Answer 1

Answer:

Explanation:

K                          L                              M

2                          8                               8

Thus, atomic number of the element will be 18.

And electronic configuration of the element can be given as:

1s  

2

2s  

2

2p  

6

3s  

2

3p  

6

 

Thus, total number of s electron is 6.

Answer 2

Answer:

KLM

286

(a) Since, it has 6 valence electrons, it belongs to group no. 16.

(b) It has 3 Valence shells, so it belongs to period no 3.

(c) The number of valence electron is 6.

(d) The valency of E is 2 because it requires 2 electrons to achieve its stability .

(e) It is a non-metal.