Which one of the following statements best describes the particles in a gas? a. they are very close together and are able to vibrate. b. they are stationary and not able to vibrate c. they are moving very slow and are far apart. d. they are moving very fast and are far apart.

Which is true of transition metals when moving from left to right on the periodic table? the d sublevels are not filled across the period. the cation radii become larger across the period. atomic radii increase slightly and then start to decrease. atomic radii decrease slightly and then start to increase. o

Acurium-245 nucleus is hit with a neutron and changes as shown by the equation. complete the equation by filling in the missing parts. 52

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by