Elementary Mass

[Ashish]

The elementary charge (symbol e or sometimes q) is the electric charge carried by a single proton, or equivalently, the negative of the electric charge carried by a single electron

 

It has a value of 1.602 176 487 × 10^(-19) Coloumb.

 

So is there any elementary mass

[thedarkshade]

yes there is: [math]9.1 \times 10^{-31}kg[/math]

[Ashish]

Isn't it for Atomic Mass Unit

 

1 amu = 1.660538782(83)\times 10^{−27} kg

[thedarkshade]

No, the atomic unit mas is [math]1.6605 \times 10^{-27}kg[/math] and that's just to make the calculations easier. The elementary mass is what I posted above!

[Ashish]

As there is a charge quantization so as well for mass also or what?

[thedarkshade]

Listen, the elementary charge like you posted is:

 

[math]q_e=1.609 \times 10^{-19}C[/math] that is the charge of an electron or a proton. The smallest charge existing.

 

And the elementary mass is the mass of the electron which is:

 

[math]m_e=9.1 \times 10^{-31}kg[/math].

 

You mention atomic unit. That equals [math]1.6605 \times 10^{-27}kg[/math]

 

and it has been taken by convention to make the calculations easier!

[Ashish]

No I was saying that charge occur only in quanta i.e.

q = ne

so is there anything about mass quantization

[thedarkshade]

Nah, don't think so. At least I have not heard so!

[ydoaPs]

http://en.wikipedia.org/wiki/Plank_mass

[timo]

So is there any elementary mass

No.

[thedarkshade]

http://en.wikipedia.org/wiki/Plank_mass

I don't get yourdadonapogos, [math]9.1\times 10^{-31}kg[/math] is much smaller than [math]2.176\times 10^{-8}kg[/math] and elementary means the smallest one possible.

 

I don't understand the reason of you post!

[Klaynos]

No.

 

I think we should all note this...

[Ashish]

I mean to say that is there any small elementary particle which can be used as an integral one.

[swansont]

I mean to say that is there any small elementary particle which can be used as an integral one.

 

No, there is no elementary quantized unit of mass. At least not that I've heard of.

[Roberto]

So than may I ask what the definition/use of elementary mass unit is? Ive been wondering since I was introduced to the concept.

[swansont]

So than may I ask what the definition/use of elementary mass unit is? Ive been wondering since I was introduced to the concept.

 

Under what scenario was this a concept that could be introduced?

[Roberto]

solid state chemistry and Im aware of its value. even roughly aware thats its obtained as (m©/12)/(6.02E23), correct me if Im wrong because I did the calculation on the graphing calc and got 1.66261074E-27. Im using m©=0.0120107kg.

[swansont]

solid state chemistry and Im aware of its value. even roughly aware thats its obtained as (m©/12)/(6.02E23), correct me if Im wrong because I did the calculation on the graphing calc and got 1.66261074E-27. Im using m©=0.0120107kg.

 

That's a standard mass unit (the atomic mass unit), not elementary mass, i.e. a quantized unit, in keeping with the subject of the OP. amu is used because it is scale-appropriate for nuclear, atomic and molecular calculations.