What is the exception to the law of conservation of mass that shows a flaw in our atomic model?

Question

qwert2 · Answer

@Kainui @sweetburger can you answer this?

qwert2 · Answer

@pooja195 can u answer my question?

kainui · Answer

Depends, what's your atomic model?

qwert2 · Answer

Something like this?|dw:1473372289154:dw|
not sure... i was totally lost... I really hope u can help me. Do you know about any exceptions?

qwert2 · Answer

@Kainui do u know an answer

kainui · Answer

I have no idea what you're talking about, it's just a funny picture to me, sorry.

qwert2 · Answer

oh. well the rings are electrons and the circle in the middle is the nucleus.

melissa_something · Answer

We do not know exactly how electrons work, they "jump" to different shells and we don't know how they do that yet. I think the picture is showing that it's not really how it looks like.