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57
votes
5answers
10k views

What does it mean for two objects to “touch”?

If you've ever been annoyingly poked by a geek, you might be familiar with the semi-nerdy obnoxious response of "I'm not actually touching you! The electrons in the atoms of my skin are just ...
8
votes
2answers
17k views

What is in the space between a nucleus of an atom and its electrons?

There is a common analogy about the structure of an atom, such as the nucleus is a fly in the centre of a sports stadium and the electrons are tiny tiny gnats circling the stadium (tip of the hat to ...
8
votes
4answers
680 views

Huge confusion with Fermions and Bosons and how they relate to total spin of atom

I am supremely confused when something has spin or when it does not. For example, atomic Hydrogen has 4 fermions, three quarks to make a proton, and 1 electron. There is an even number of fermions, ...
14
votes
1answer
3k views

Are all electrons identical?

Why should two sub-atomic (or elementary particle) - say electrons need to have identical static properties - identical mass, identical charge? Why can't they differ between each other by a very ...
6
votes
4answers
998 views

Intrinsic structure of electron

The electron contains finite negative charge.The same charges repel each other.What makes electron stable and why does it not burst? Is it a law of nature that the electron charge is the smallest ...
0
votes
6answers
534 views

What would be likely to completely stop a subatomic particle assuming it was possible?

Suppose that completely stopping a subatomic particle, such as an electron, could happen under certain conditions. What would be likely ways to get an electron to be perfectly still, or even just stop ...
4
votes
1answer
1k views

Why are there 3 quarks in proton?

A few quark related questions (I don't knowmuch about them other than there are 2 flavours concerning protons and neutrons) Why are there 3 quarks in a proton or neutron? Why not 2 or 4? Is there an ...
1
vote
2answers
118 views

How exactly do protons and electrons interact with each other?

How do these particles exchange information about charge and position between themselves, even though there's mostly empty space between them? Also what happens if a free electron passes closer to a ...
-1
votes
1answer
112 views

A question on the property of proton and neutron? [closed]

The NOVA show on the string theory have mention once that the proton and neutron will be disappear in finite amount of time, then reappearing on somewhere else. Is there any experiment have shown that ...
-2
votes
1answer
150 views

Why aren't quarks free? [duplicate]

According to latest modern theory on subatomic particles, electrons and protons are further divided into quarks, having fractional charges. My question is, why can't they exist independently? and ...
-3
votes
2answers
340 views

Energy source of electrons?

I am aware that electrons are moving in an empty space so basically there is no friction to slow it down and its velocity stays the same. However where did the electron get its energy from in the ...