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

Author Question: How many valence electrons are in silicon? A) 2 B) 4 C) 5 D) ... (Read 74 times)

LCritchfi

  • Hero Member
  • *****
  • Posts: 519
How many valence electrons are in silicon?
 
  A) 2
  B) 4
  C) 5
  D) 7

Question 2

What is the source of atmospheric pressure?
 
  A) It is the weight of the air above that is pushing down on us.
  B) It is the interatomic attraction between air molecules.
  C) It is the potential energy stored in the gas molecules.
  D) It is the stored solar energy in gas molecules.
  E) none of the above



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

perkiness

  • Sr. Member
  • ****
  • Posts: 348
Answer to Question 1

B

Answer to Question 2

A



LCritchfi

  • Hero Member
  • *****
  • Posts: 519

perkiness

  • Sr. Member
  • ****
  • Posts: 348
Always glad to help...



 

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

For a complete list of videos, visit our video library