The shells further away from the nucleus are larger/smaller and can hold more/less electrons. Which one is the right one? Larger/smaller? More/less?

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

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?