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

Author Question: A horizontal row in the modern periodic table is called a A) period. B) group. C) branch. D) ... (Read 36 times)

xroflmao

  • Hero Member
  • *****
  • Posts: 515
A horizontal row in the modern periodic table is called a
 
  A) period.
  B) group.
  C) branch.
  D) valence.

Question 2

Which of the following half-lives is the most stable for an isotope?
 
  A) 0.015 hr
  B) 0.92 min
  C) 56 s
  D) 72 s



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

wuly

  • Sr. Member
  • ****
  • Posts: 327
Answer to Question 1

A

Answer to Question 2

D





 

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

For a complete list of videos, visit our video library