Enter the number of electrons in each energy level (shell) for each of the elements. If the energy level does not contain any electrons, enter a 0. It may help to refer to the periodic table. He: ?=1 ?=2 ?=3 ?=4 F: ?=1 ?=2 ?=3 ?=4 Cl: ?=1 ?=2 ?=3 ?=4 K: ?=1 ?=2 ?=3 ?=4 What is the neutral atom that has its first two energy levels filled, has 2 electrons in its third energy level, and has no other electrons? Enter the name of the element, not the abbreviation. element name:

World of Chemistry, 3rd edition
3rd Edition
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Chapter3: Chemical Foundations: Elements, Atoms, And Ions
Section: Chapter Questions
Problem 56A
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Enter the number of electrons in each energy level (shell) for each of the elements. If the energy level does not contain any electrons, enter a 0. It may help to refer to the periodic table.

He:
?=1

?=2

?=3

?=4

F:
?=1

?=2

?=3

?=4

Cl:
?=1

?=2

?=3

?=4

K:
?=1

?=2

?=3

?=4

What is the neutral atom that has its first two energy levels filled, has 2 electrons in its third energy level, and has no other electrons? Enter the name of the element, not the abbreviation.
element name:

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