The element Y has 13 electrons. What is the electronic configuration of element Y? *
O 13
2, 11
O 2,8,3
am
3,8,2​

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?