How many ions are in
1.50 grams of Na+

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?

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

Why does his teacher ask him to balance the equation by including the correct coefficient