Radioactive Decay Review....

[chandler742]

Let's suppose that a massive element has undergone a radioactive decay. The new element has the same mass but the atomic number decreased by one.

What other particle was emitted in this decay?

A) Alpha partice
B) Positron
C) Electron
E) Gamma Ray

Case #2
What if the atomic number and mass number stayed the same?


Case #3
What if the atomic number increased by one and the mass number stayed the same?

Good Luck on the MCAT. I'll be later in the week.

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[eurotrash]

positron, gama, beta

 

[chandler742]

right, right, and close.


keep in mind that a positron is considered a Beta particle too. An electron is beta - and positron is beta +.

Also to account for the conservation of momentum neutrino and anti neutrino escape in the radioactive decay.

Anti-neutrino leaves with electon.
Neutrino leaves with positron.

Mneumonic. (A)lphabetically an atom is made of (e)lectrons,
eutrons, and (p)rotons(AENP).

AENP-> Anti-neutrino=electron, neutrino=positron.

This is what I used, if it doesn't work disregard.

I'm off. Later.

 

[freakazoid]

I'm gone for a day and end up not getting to answer your questions before you answer them for real. Itz kool though, I just don't look at what other people put anyways. Good job, chandler. Keep 'em coming.