[lifeformed]

Anything except for quarks.

[jacquesm]

If you bang some of the electrons hard enough into some of the neutrons or protons you'll even get quarks.

[ars]

No you won't.

You need to bang protons or neutron together. Electrons don't participate in color force and can't make quarks.

[jacquesm]

Hehe, trust me for getting it wrong, you are absolutely right.