This topic contains a solution. Click here to go to the answer

Author Question: The closest star to the Sun is named a. Polaris. b. Sirius. c. Betelgeuse. d. Proxima ... (Read 94 times)

CORALGRILL2014

  • Hero Member
  • *****
  • Posts: 525
The closest star to the Sun is named
 a. Polaris.
  b. Sirius.
  c. Betelgeuse.
  d. Proxima Centauri.

Question 2

When a hydrogen electron is in its ground state, its principal quantum number is
 a. zero.
  b. 13.6 eV.
  c. 1.
  d. +13.6 eV.
  e. none of these.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

scrocafella

  • Sr. Member
  • ****
  • Posts: 346
Answer to Question 1

d

Answer to Question 2

c



CORALGRILL2014

  • Hero Member
  • *****
  • Posts: 525
Both answers were spot on, thank you once again



scrocafella

  • Sr. Member
  • ****
  • Posts: 346

 

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

For a complete list of videos, visit our video library