Select the correct answer. A sample of an element was poured from one container into a second container. It took on the shape of the second container. It was then
cooled. After cooling, the element was removed from the container and kept its new shape. What happened to the atoms of the element wt
they were cooled in the second container?
OA. They began to escape into the air.
OB. They stopped being attracted to nearby atoms.
OC. They stopped moving past the atoms around them.
OD. They began to move more quickly.

Newtons second law deals most cosely with

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size

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.