« previous next »

Author Question: As the solar nebula contracts, it A) cools due to condensation. B) reverses its direction of ... (Read 58 times)

codyclark

  • Hero Member
  • *****
  • Posts: 538
on: Jul 27, 2018
As the solar nebula contracts, it
 
  A) cools due to condensation.
  B) reverses its direction of rotation.
  C) loses angular momentum.
  D) spins faster due to conservation of angular momentum.
  E) flattens out into the ecliptic plane around the Sun's poles.

Question 2

An isotope of fluorine has 9 protons and 10 neutrons. What are the atomic number and atomic mass number of this fluorine? If we added a proton to this fluorine nucleus, would the result still be fluorine? What if we added a neutron instead? Explain.
 
  What will be an ideal response?


recede

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

The atomic number of fluorine is equal to the number of protons, 9. The atomic mass number is equal to the number of protons plus neutrons, 19. If we added a proton, it would no longer be fluorine. If we added a neutron instead, it would just be another isotope of fluorine, with atomic number 9 but atomic weight 20.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Solar particles interact with Earth's magnetosphere. Sizes not to scale. Solar particles interact with Earth's magnetosphere. Sizes not to scale.
During a total solar eclipse, the solar corona can be seen with the naked eye, during the brief peri During a total solar eclipse, the solar corona can be seen with the naked eye, during the brief peri
The Solar System The Solar System
Solar Harvesting Device Solar Harvesting Device
a) Face the direction of your stroke. b) Avoid facing away from your stroke. a) Face the direction of your stroke. b) Avoid facing away from your stroke.
Variations in Solar Angle with Latitude Variations in Solar Angle with Latitude
Video: System organization - PPM system types (Somatic, Autonomic & Enteric) and Reflex arc types

For a complete list of videos, visit our video library