Iodine has 7 valence electrons. It needs therefore only 1 electron to be stable this is why it is so reactive.
1. Ionic Bond
2.It is a chemical reaction because the reactants react to create products and it is endothermic because it takes in heat from the sunlight which helps it to photosynthesise
Hope that helps ☻
It gets all the energy from food food is every important
I think it is 3 because Sus wiw word if rn
