Como calcular la electronegatividad de HBr??
explique porfavor

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?

Gymnast always perform on padded mats. how does the mats protect the gymnast

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?