« previous next »

Author Question: As the solar nebula contracts, it A) cools due to condensation. B) reverses its direction of ... (Read 57 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?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

The monthly changes of angle between the direction of illumination by the Sun and viewing from Earth The monthly changes of angle between the direction of illumination by the Sun and viewing from Earth
The Solar System The Solar System
The Gum Nebula The Gum Nebula
Variations in Solar Angle with Latitude Variations in Solar Angle with Latitude
What Happens to Incoming Solar Radiation? What Happens to Incoming Solar Radiation?
Relationship of Sun Angle and Solar Radiation Relationship of Sun Angle and Solar Radiation
Video: Definition of heart rate

For a complete list of videos, visit our video library