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Author Question: What particle is emitted when 20Na decays to 20Ne? (The atomic numbers of Na and Ne are, ... (Read 49 times)

Mimi

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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.


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durant1234

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Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

C


Mimi

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Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

duy1981999

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Reply 3 on: Yesterday
Wow, this really help

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