Which type of electromagnetic waves are dangerous enough to be used to kill cancerous cells? gamma rays
visible light
infrared light
microwaves

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?

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by

Which of the following molecules is polar? c3h7oh c2h5cooh