Earth is located in which galaxy?

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 ?

How many joules of heat are required to raise thetemperature of 750 g of water from 11.0 °c to 19.0 °c?