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

Author Question: What is the number of outer shell electrons in fluorine? A) 2 B) 5 C) 7 D) ... (Read 46 times)

lb_gilbert

  • Hero Member
  • *****
  • Posts: 588
What is the number of outer shell electrons in fluorine?
 
  A) 2
  B) 5
  C) 7
  D) 9

Question 2

Why might helium be present only in small amounts in the atmosphere?
 
  A) It is so light that it can escape the atmosphere.
  B) It is not found much in nature.
  C) It is not produced in nuclear transformations.
  D) It is too reactive and is quickly converted into minerals.
  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

kardosa007

  • Sr. Member
  • ****
  • Posts: 300
Answer to Question 1

C

Answer to Question 2

A




lb_gilbert

  • Member
  • Posts: 588
Reply 2 on: Aug 27, 2018
YES! Correct, THANKS for helping me on my review


bigcheese9

  • Member
  • Posts: 333
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

For a complete list of videos, visit our video library