I have multiple stochiometry questions; could someone please help me out and give an explination? I'd greatly appreciate it, and I'll give brainliest to whoever helps me out! ^^

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?

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

Using data from seismic waves, geologists have learned that earth’s interior is made up of several