1.) what is the valence shell electron configuration of an alkaline earth metal?
2.) use the interactive periodic table to answer the following questions about atomic radius. start by selecting the periodic table link on the upper right side of the page beneath the sf6 molecule. using the pull down menu at the bottom of the table, select atomic radius.
what is the atomic radius of selenium (atomic number 34)?
plot the radius of the group 1 elements. what trend do you see in radius?
what trend do you think you will you see if you plot any other group? (check your prediction.)
3.) put these atoms in order of increasing radii: ca, p, mg, cl.
put these atoms in order of increasing radii: f, te, br, pb.