2014年2月7日 · The electron configuration for chromium is NOT #1s^2 2s^2 2p^6 3s^2 3p^6 3d^4 4s^2#, but #color(blue)(1s^2 2s^2 2p^6 3s^2 3p^6 3d^5 4s^1)#. Interestingly enough, …

2015年12月14日 · It is energetically favored. Looking at the periodic table, you would expect Chromium to have this configuration: 1s^2 2s^2 2p^6 3s^2 3p^2 4s^2 3d^4 Or, condensed …

2014年7月7日 · Some elements do not follow the Aufbau principle, there are some alternate ways that electrons can arrange themselves that give these elements better stability. Using the …

2016年3月1日 · Refer to the explanation. When writing electron configurations using the Aufbau principle, there are two schools of thought. One is like the electron configuration of chromium …

2018年4月18日 · One mole of potassium dichromate contains two moles of chromium. Determine the mass of chromium by multiplying its subscript #2# by its molar mass (atomic weight on the …

2014年11月27日 · +6 Problem: What is the oxidation number (O.N.) of chromium (Cr) in the dichromate ion "Cr"_2"O"_7"^(2-)? Let the O.N. of Cr be x. The O.N. of oxygen is -2. The sum …

2017年10月19日 · Chromium is explained in great detail here. It boils down to an increase in exchange energy and decrease in repulsion energy being enough that the #3d# orbitals are …

2014年5月26日 · The electron configuration 1s^2 2s^2 2p^6 3s^2 3p^2 is the element Silicon. The key to deciphering this is to look at the last bit of information of the electron configuration 3p^2. …

For the transition metals, groups 3-12, there are many exceptions. The general rule is that the element's electron configuration ends in d and whatever place they are in. Scandium would …

2017年7月1日 · Well for the chromium atom, Z=24, we gots..... 1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^(1)3d^5 This is an unusual config.....and "Hund's rule" of …