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

Author Question: When an unstable nucleus expels a positron ________. A) its mass number is decreased by four ... (Read 34 times)

tiara099

  • Hero Member
  • *****
  • Posts: 588
on: Aug 27, 2018
When an unstable nucleus expels a positron ________.
 
  A) its mass number is decreased by four units
  B) its atomic number is decreased by one unit
  C) its atomic number is increased by one unit
  D) its mass number is decreased by one unit

Question 2

A metalloid
 
  A) is the same as a metal.
  B) is located on the left side of the periodic table.
  C) has properties intermediate between metals and nonmetals.
  D) is in the center of the periodic table.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Tonny

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

C


tiara099

  • Hero Member
  • *****
  • Posts: 588
Reply #2 on: Aug 27, 2018
Thank you!


Tonny

  • Sr. Member
  • ****
  • Posts: 341
Reply #3 on: Aug 27, 2018
Always glad to help...


« previous next »
 

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Mammals posses a number of physiological pathways related to stress. One example is the hypothalamic Mammals posses a number of physiological pathways related to stress. One example is the hypothalamic
An “Intermediate-Mass” Black Hole An “Intermediate-Mass” Black Hole
Father’s Age and the Number of de novo Mutations Father’s Age and the Number of de novo Mutations
Body mass index table. Body mass index table.
Estimated number of new HIV infections per year over time period in Canada Estimated number of new HIV infections per year over time period in Canada
Number of Mutations Associated with Specific Forms of Cancer Number of Mutations Associated with Specific Forms of Cancer
Video: Mechanisms of capillary exchange (transcytosis & bulk flow)

For a complete list of videos, visit our video library