Why do electrons orbit the nucleus?

Started by wanderingmind | Last post by wanderingmind April 13, 2007, 11:30:32 AM

Why do flourescent minerals no longer fluorecse after exposure to heat?

Started by glassy24 | Last post by glassy24 October 25, 2012, 11:26:39 AM

Why do heavier atoms experience relativistic effects?

Started by Chaste | Last post by FeLiXe October 30, 2008, 06:17:17 AM

Why do helium atoms repel each other?

Started by msk034 | Last post by Enthalpy October 22, 2014, 01:51:42 PM

Why do P molecular orbitals have to be symmetrically alligned to form Pi bonds?

Started by Traumatic Acid | Last post by Traumatic Acid November 10, 2020, 11:15:11 PM

Why do some aqueous solutions (OH-, F-) have negative entropy values?

Started by InquiringStudentMF | Last post by ramboacid April 09, 2012, 07:15:43 PM

Why do the Bohr equations only work for hydrogen and helium?

Started by DGonzo2015 | Last post by Borek August 31, 2013, 02:02:44 PM

Why does Anode and Cathode have Charges?‏

Started by ShubhamRathi | Last post by Arkcon February 11, 2013, 09:49:33 PM

Why does electrical surface dipole lower surface work function?

Started by La-Lu | Last post by La-Lu January 13, 2022, 03:19:42 AM

Why does entropy of surroundings not depend on reversible q?

Started by RobNk | Last post by RobNk November 18, 2010, 11:22:45 AM

Why does Fe3+ have a lower pKa than Al3+?

Started by knightsljx | Last post by knightsljx August 18, 2014, 02:20:13 AM

why does one have to use external p to calculate w

Started by georg gill | Last post by juanrga February 20, 2012, 12:49:11 PM

Why does resonance lower the energy?

Started by poobear | Last post by poobear March 19, 2011, 01:43:26 PM

WHY does the 2nd law of Thermodynamics work?

Started by pjoseph | Last post by McCoy April 30, 2010, 05:55:43 AM

Why does the universe strive for disorder?

Started by K2Cr2O7 | Last post by Donaldson Tan October 17, 2006, 03:49:15 PM