Me this is my midterm what are 5 different subgroups within the metal group on the periodic table

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same