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

Author Question: How many valence electrons are in silicon? A) 2 B) 4 C) 5 D) ... (Read 89 times)

LCritchfi

  • Hero Member
  • *****
  • Posts: 519
on: Aug 27, 2018
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
Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

A


LCritchfi

  • Hero Member
  • *****
  • Posts: 519
Reply #2 on: Aug 27, 2018
Thank you!


perkiness

  • Sr. Member
  • ****
  • Posts: 348
Reply #3 on: Aug 27, 2018
Always glad to help...


« previous next »
 

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Electrons Are Shared in Covalent Bonds Electrons Are Shared in Covalent Bonds
Electrons Electrons
Covalent bonds form by the sharing of electrons Covalent bonds form by the sharing of electrons
The Bohr model of the atom. The nucleus contains protons and neutrons, and electrons orbit around ... The Bohr model of the atom. The nucleus contains protons and neutrons, and electrons orbit around ...
Silicon-oxygen tetrahedron Silicon-oxygen tetrahedron
A typical lightning bolt may last for 0.167 s and transfer 1.07 x 10 electrons. Calculate the ... A typical lightning bolt may last for 0.167 s and transfer 1.07 x 10 electrons. Calculate the ...
Video: Evolutionary tree of life Animation

For a complete list of videos, visit our video library