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  Which element has the following electron configuration?  1s22s22p63s23p64s23d8  

A system initially has an internal energy U of 499 J. It undergoes a process during which it releases 109 J of heat energy to the surroundings, and does work of 401 J. What is the final energy of the system, in J? Type your final answer here.  No work needs to be submitted.  

Gamma X-rays Ultraviolet Visible Infrared Microwaves Radio waves Which has a longer wavelength, green light or ultraviolet?  

  Consider the following electron configurations.  Which one shown is not possible? A) 1s22s22p63s23p4 B) 1s22s22p53s23p4 C) 1s22s22p63s23p63d104s2 D) 1s22s22p63s33p4 E) 1s12s22p63s23p4  

There were individuals, like Thomas Paine, known as “loyalists” that opposed the Revolutionary movement. 

According to the Intolerable Acts, British soldiers could lodge in private homes whenever they wanted to.

The confrontation between British soldiers and Bostonians is commonly referred to as _________________.

Major colonial leaders convened in the Continental Congress to discuss their issues with Britain.

“No taxation without representation” was the main grievance of the colonists.

The ____ is the time during which the electrodes are not contacting the workpieces.