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 63 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?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

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
Caudate Nucleus and Stereotyped Behavior in Autism Caudate Nucleus and Stereotyped Behavior in Autism
Model of a longitudinal study in which 983 students were surveyed in 1984 and then again in 1985, 19 Model of a longitudinal study in which 983 students were surveyed in 1984 and then again in 1985, 19
The DNA from one chromosome has a mass of ~20 billion Daltons The DNA from one chromosome has a mass of ~20 billion Daltons
How many grams of tartaric acid, H2C4H4O6, (molar mass = 150.10 g) are needed to How many grams of tartaric acid, H2C4H4O6, (molar mass = 150.10 g) are needed to
Opener Chromosome territories in a chicken cell nucleus Opener Chromosome territories in a chicken cell nucleus
Video: Muscle cell structures - actin, myosin and titin filaments

For a complete list of videos, visit our video library