Question

An element has its electron configuration 2,8,5. Now answer the following questions
a) what is the atomic number of this element?
b) to which period does this element belong?
C) What is the block of this element?​

Answer 1

Answer:

a) 15

b) 3rd Period

c) p-block

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Answer 2

Answer:

a. 15

Explanation:

b. 2nd period

c. p block