Draw the line structure for pentene

Jose and eric were given four samples in lab. the results of their analysis are shown in the table. based on the data they collected, which sample is most likely a metal?

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring

As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.