I want to know the answer to the following question:
What type of chemical attachment connects ions to the network?
All the background I'm provided with is that "The modifiers (calcium, lead, lithium, sodium, potassium) alter the network structure; they are usually present as ions, compensated by nearby non-bridging oxygen atoms, bound by one covalent bond to the glass network and holding one negative charge to compensate for the positive ion nearby.". Is that enough to answer the question?