Un estudiante preparó un modelo Tierra / Luna en el que las dos esferas estaban separadas por 100 m. ¿Cuáles eran los diámetros de las esferas?​

a electronegativity decreases beacuse the size of nucleus is bigger.

i believe the answer is 5,000

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.