The Element with the Electronic Configuration 1s²2s²2p⁶3s¹ Is ________

question 21

Short Answer

The element with the electronic configuration 1s²2s²2p⁶3s¹ is ________.

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Definitions:

Posttraumatic Stress Disorder

A psychiatric disorder that may occur in people who have experienced or witnessed a traumatic event.

U.S. Civil War

A significant conflict from 1861 to 1865 in the United States between the Northern states (Union) and the Southern secessionist states (Confederacy) primarily over issues of slavery and states' rights.

Melancholia

A condition described by early Greek and Roman philosophers and physicians as consisting of unshakable sadness. Today it is known as depression.

Soldier's Heart

An outdated term historically used to describe what is now known as Posttraumatic Stress Disorder (PTSD), particularly among war veterans.