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

Author Question: Why are elements with even numbers of protons more abundant, on average, than elements with odd ... (Read 31 times)

P68T

  • Hero Member
  • *****
  • Posts: 509
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
Answer to Question 1

C

Answer to Question 2

D





 

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

For a complete list of videos, visit our video library