Hiya! Here is my question : A mix of Oxygen and Nitrogen gas has a density of 1.185 g/L at 25 degrees Celsius and has a pressure of 101.3 kPa. What is the totals of moles and the molar fractions of both Oxygen and Nitrogen gas?

indium, and thallium have three electrons i think

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.