electrostatic force
Explanation:
In ionic bonds one atom is positively charged (the atom that gives its electrons), and the other atom is negatively charged (the atom that receives the electrons); therefore, it is the opposite charge of the ions that attracts them to one another and holds them together with electrostatic force.
3. B
4. A
5.A
6. A (i think)
Hope this helps
A. electron. The nucleus has protons and neutrons, quark is the particle which forms protons and neutrons.