What name is assigned to these types of atoms that have an atomic number of 31

In this synthesis reaction what products will form

Agas at 155 kpa and standard temperature has an initial volume of 1.00 l. the pressure of the gas rises to 500 kpa as the temperature also rises to 135°c. what is the new volume? 2.16 l 0.463 l 0.207 l 4.82 l

Why are people not able to scuba dive in the deep part of the ocean