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What Are the Atomic Numbers of Elements Whose Outermost Electrons Are Represented by 3p5? - Chemistry

What are the atomic numbers of elements whose outermost electrons are represented by 3p5?

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Solution

3p5

Completing the electron configuration of the element as

1s2 2s2 2p6 3s2 3p5

∴ Number of electrons present in the atom of the element = 2 + 2 + 6+2+5 = 17

∴ Atomic number of the element = 17

Concept: Concept of Atomic Number
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APPEARS IN

NCERT Class 11 Chemistry Textbook
Chapter 2 Structure of Atom
Q 23.2 | Page 66
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