How many atoms are in this formula?
5(NH4)2 O

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?

8. what happens to matter during a chemical reaction

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion