How are atoms connected to each other

Which statement correctly describes potassium iodide, ki? there is a one-to-one ratio of potassium ions to iodide ions. potassium gains electrons and iodine loses electrons during the reaction. the lattice is held together by potassium anions and iodide cations.

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball

How many grams of mgbr2 are needed to produce 75g or metal?