Based on the position of element A in the periodic table below, what can you predict about the element?
A The element is a poor conductor and has a shiny appearance.
B The element is a good conductor and has a shiny y appearance.
C The element is a poor conductor and has a dull-looking appearance.
D The element is a good conductor and has a dull-looking appearance.

Plz mark brainliest 30 points1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s.2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?