14. Which of the following elements would NOT form a covalent compound with oxygen? Lithium (Li)
Sulfur (5)
Nitrogen (N)
Chlorine (CI)

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?

Which metal exist in liquid state and can be cut with knife ?

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure