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Answer: A neutral atom of a certain element has 17

Chapter 8, Problem 8.2b

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QUESTION:

A neutral atom of a certain element has 17 electrons. Without consulting a periodic table, (a) write the ground-state electron configuration of the element, (b) classify the element, (c) determine whether this element is diamagnetic or paramagnetic.

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QUESTION:

A neutral atom of a certain element has 17 electrons. Without consulting a periodic table, (a) write the ground-state electron configuration of the element, (b) classify the element, (c) determine whether this element is diamagnetic or paramagnetic.

ANSWER:

Step 1 of 3

(a) The increasing order of energies of the orbital are,1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 4f, 5d, 6p, 7s...

Here, as subshell accommodates maximum 2 electrons, p subshell accommodates maximum 6 electrons and d subshell accommodates maximum 10 electrons.

Since 17 electrons are present, electronic configuration is,

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