Chemistry alpha decay

[Rachel Maddiee]

Is this the correct equation for alpha decay? 

 

243/93 Am —> 239/93Np + 4/2He
 

[Sensei]

24 minutes ago, Rachel Maddiee said:

Is this the correct equation for alpha decay? 

243/93 Am —> 239/93Np + 4/2He

No. Almost. Pay better attention to numbers..

 

[Rachel Maddiee]

What is incorrect?

[John Cuthber]

7 hours ago, Rachel Maddiee said:

What is incorrect?

A typo, but you need to fix it.

[swansont]

How many protons are in Am?

[Rachel Maddiee]

95 protons

[swansont]

5 hours ago, Rachel Maddiee said:

95 protons

And you wrote "243/93 Am" which is the mistake people were hinting about. Z didn't change in the reaction, but it must decrease by 2 in alpha decay

[Avy213]

Not at all..... The atomic no must reduce by 2

[swansont]

9 minutes ago, Avy213 said:

Not at all..... The atomic no must reduce by 2

Z is the atomic number, so...

[Rachel Maddiee]

So how should I write it?

[swansont]

3 hours ago, Rachel Maddiee said:

So how should I write it?

Change the 93 to 95 for Am

i.e. 243/95 Am 

[Avy213]

On 12/23/2019 at 6:05 PM, swansont said:

Z is the atomic number, so...

Of course,sir...