Author Question: The ________ have the most negative electron affinities. A) alkaline earth metals B) alkali ... (Read 29 times)

dakota nelson

  • Hero Member
  • *****
  • Posts: 604
The ________ have the most negative electron affinities.
 
  A) alkaline earth metals
  B) alkali metals
  C) halogens
  D) transition metals
  E) chalcogens

Question 2

Isotopes of hydrogen ________.
 
  A) have the same atomic number and different mass numbers
  B) have the same atomic number and the same mass number
  C) have different atomic numbers and different mass numbers
  D) have different atomic numbers and the same mass number
  E) are exactly alike



Silverbeard98

  • Sr. Member
  • ****
  • Posts: 355
Answer to Question 1

C

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

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?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

For a complete list of videos, visit our video library