What is N for silicon tetrachloride sicl4

What is the number of moles in 15.0 g ash3?

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?

Using the periodic table, complete the table to describe each atom. type in your answers