What are the 3 main types of star "corpses"? neutron star
Elvis
white dwarf (which fades to a black dwarf)
black hole
f

it's c. elements are placed in rows based on how may valencies electrons have.

i'm pretty sure it is letter c.) car

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )