Answer:
(a) 13.6 eV
(b) 10.2 V
Explanation:
a) Ionization potential energy is defined as the minimum energy required to excite a neutral atom to its ionized state i.e basically the minimum energy required to excite an electron from n=1 to infinity.
Energy of a level, n, in Hydrogen atom is, 
Now ionization potential can be calculated as
Substitute all the value of energy and n in above equation.
Therefore, the ionization potential is 13.6 eV.
b) This is the energy required to excite a atom from ground state to its excited state. When electrons jumps from ground state level(n=1) to 1st excited state(n=2) the corresponding energy is called 1st excitation potential energy and corresponding potential is called 1st excitation potential.
So, 1st excitation energy = E(n 2)- E(n = 1)
Now we can find that 1st excitation energy is 10.2 eV which gives,
Therefore, the 1st excitation potential is 10.2V.
Answer:
Kathryn's stressor is most likely related to her car accident.
Explanation:
Stressor: In psychology, the term "stressor" is described as any specific environmental stimulus, event, or experience that tends to cause stress in a particular individual or person. Therefore, these experiences or events are being perceived as challenges or threats to the person and it can be either psychological or physical.
Example: Divorce, getting married, death of a loved one, etc.
In the question above, "the most likely stressor causing Kathryn to experience anxiety is car accident".
Answer:
Balanced chemical equations only show formulae, not names. A balancing number, written in normal script, multiplies all the atoms in the substance next to it.
NOooOoIooOOi Hsushrhndndnrbrbr rgehrbhrhrbr r he rjrnd
When you sort the ranges of EM waves from lowest to highest frequency, the visible light range is just higher than infrared (think "below red") and just lower than ultraviolet (think "above violet").
Choice E.
