Silicon (Si-14) has 14 protons and has an atomic radius of 111 pm. Germanium (Ge-32) has 32 protons and an atomic radius of 125 pm. Use the models of these two atoms and the periodic table to explain the difference in atomic radius between the two atoms. Include in your explanation Coulomb's Law, the calculated attractive forces for the outermost electron, and any atomic radius trend needed to fully explain your answer.​

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.

answer: cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. usually, this process uses oxygen, and is called aerobic respiration. it has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain.