This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why are elements with even numbers of protons more abundant, on average, than elements with odd ... (Read 61 times)

P68T

  • Hero Member
  • *****
  • Posts: 509
on: Jul 27, 2018
Why are elements with even numbers of protons more abundant, on average, than elements with odd numbers of protons?
 
  A) because when elements split in a fission reaction, they prefer to split with all the protons paired
  B) because elements are mainly made in fusion reactions with hydrogen nuclei
  C) because elements are mainly made in fusion reactions with helium nuclei
  D) There's no explanation; it's something of a mystery to be explained or it may be a coincidence.

Question 2

Why is the night sky dark?
 
  A) Dark matter obscures light from distant objects.
  B) The dust clouds in interstellar space block the light.
  C) The universe has a physical edge, beyond which there is nothing.
  D) The universe is finite in age.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cswans24

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

D


P68T

  • Hero Member
  • *****
  • Posts: 509
Reply #2 on: Jul 27, 2018
Thanks


cswans24

  • Sr. Member
  • ****
  • Posts: 317
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

The nitrogen cycle. Numbers represent fluxes as 1012 g N per year (data from Schlesinger 1991, after The nitrogen cycle. Numbers represent fluxes as 1012 g N per year (data from Schlesinger 1991, after
Orangutans are limited to the islands of Sumatra and Borneo, where their numbers are rapidly declini Orangutans are limited to the islands of Sumatra and Borneo, where their numbers are rapidly declini
How to round numbers with significant digits How to round numbers with significant digits
Numbers 2 and 5 only Numbers 2 and 5 only
Major Elements of the Genitourinary System Major Elements of the Genitourinary System
Changing Dimensions of the Pregnant Uterus. Numbers Represent Weeks of Gestation Changing Dimensions of the Pregnant Uterus. Numbers Represent Weeks of Gestation
Video: What are Taste Receptors? How Does it Work? Animation

For a complete list of videos, visit our video library