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

Author Question: What particle is emitted when 20Na decays to 20Ne? (The atomic numbers of Na and Ne are, ... (Read 17 times)

Mimi

  • Hero Member
  • *****
  • Posts: 542
on: Jul 28, 2018
What particle is emitted when 20Na decays to 20Ne? (The atomic numbers of Na and Ne are, respectively, 11 and 10.)
 a. beta (positron)
  c. alpha
  b. gamma quantum
  d. beta (electron)

Question 2

A radioactive isotope that emits an alpha particle will change in what respect?
 a. Atomic number decreases by four.
  b. Both choices a and b are valid. c. Mass number decreases by four.
  d. None of these choices are valid.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

durant1234

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

C


Mimi

  • Member
  • Posts: 542
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

ricroger

  • Member
  • Posts: 352
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Letters and Numbers Letters and Numbers
Orangutans are limited to the islands of Sumatra and Borneo, where their numbers are rapidly declini Orangutans are limited to the islands of Sumatra and Borneo, where their numbers are rapidly declini
Use of Numbers in Correspondence Use of Numbers in Correspondence
How to round numbers with significant digits How to round numbers with significant digits
A particle confined in a rigid one-dimensional box (an infinite well) of length 17.0 fm has an ... A particle confined in a rigid one-dimensional box (an infinite well) of length 17.0 fm has an ...
Changing Dimensions of the Pregnant Uterus. Numbers Represent Weeks of Gestation Changing Dimensions of the Pregnant Uterus. Numbers Represent Weeks of Gestation
Video: Gastroesophageal Reflux Disease (GERD)

For a complete list of videos, visit our video library