Tin, Sn, is a soft white metal. It has a low melting point compared with other metals. Tin is widely used as a coating for cans and food. Which statement accurately describes atoms of Tin?

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?

Consider the reaction: n2(g) + o2(g) ? 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?