Question

element x and y electronic configuration 2,8,1 and 2,7 respectively state
1 to which group they belong
2 to which period they belong
3 form cation or anion
4 identify the element
​

Answer 1

ANSWER;

The electronic configuration of an element

′

X

′

is 2,8,6. To which group and period of the modern periodic table does

′

X

′

belong. State its valency and justify your answer in each case.

Answer 2

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Electronic configuration, also called electronic structure, the arrangement of electrons in energy levels around an atomic nucleus. ... In terms of a more refined, quantum-mechanical model, the K–Q shells are subdivided into a set of orbitals (see orbital), each of which can be occupied by no more than a pair of electrons.