2016年1月26日 · a) This is asking you to apply the Linear Combination of Atomic Orbitals (LCAO). LINEAR COMBINATION OF ATOMIC ORBITALS (LCAO) The idea is that \\mathbf(n) number of atomic orbitals (AOs) yields \\mathbf(n) number of molecular orbitals (MOs). We can see this in context when we form the theoretical dimetal "Mg"_2 (just pretend it's in the gas phase if it …

2017年11月13日 · The electron configuration of the magnesium ion Mg2+ is similar to Na+, Ne, and Al3+. It is not similar to Ar. Okay, so we are given these answer choices, but how do we know which 3 share the same electron configuration as Mg2+? Before going on, it is important to note that when an element is written as Mg2+, it means that it is losing 2 electrons. How do we …

2017年1月21日 · The electron configuration for magnesium is #1s^2 2s^2 2p^6 3s^2#. What is the distribution of electrons in the electron shells of a magnesium atom?

2017年2月23日 · 1s^2 2s^2 2p^6 3s^2 Magnesium is element 12, so it has 12 protons and 12 electrons. The electrons fill the orbitals, reaching 12 when the 3s orbital is filled.

2016年4月15日 · #m_s# is the spin of the electrons inside the orbital (#-1/2# or #+1/2#). The electronic configuration for magnesium is #1s^2 2s^2 2p^6 3s^2#. The outermost electron is one in the #3s# orbital, which means that #n = 3#. It also means that #l = 0#, since #s# is basically shorthand for the orbital shape of #l = 0#.

2015年11月27日 · Magnesium. A quick look in the periodic table will reveal that aluminium, "Al", and magnesium, "Mg", are both located in period 3. Now, assuming that you're not familiar with the periodic trends in ionization energy, you can determine which element will have a higher third ionization energy by taking a look at their respective electron configurations. "Mg: " 1s^2 2s^2 …

2017年4月19日 · Now the electron removed that is first removed from aluminum is a p-orbital based electron. This has zero electron density at the nucleus, even though there is a greater nuclear charge. We would expect a priori that the p electron is easier to remove than an s electron, which of course, is the valence electron for magnesium.

2017年12月11日 · This is the general MO diagram you need to fill with the valence electrons of BN Boron has 3 valence electrons, and nitrogen has 5 valence electrons, this makes 8 electrons. You have to start filling the orbitals from those with lowest energy to those with higher energy. So, 2 electrons on σ2s , two electrons on σ∗2s, two electrons on σ2p . You have now 2 electrons …

2017年2月20日 · Here is the answer to 3. (I can't really make out the other questions!) These two exceptions to the usual observation that ionization energy increases across a row of the periodic table occur for two different reasons. Remember that ionization energy (IE) is the energy required to remove the highest-energy electron from the atom (the one in the orbital of highest energy). …

2017年2月4日 · If I were to take you literally, it would be a rather unstable cation... ["Mg"cdots"Mg"]^(+) (the dots are an interaction line for a half-bond, not electrons) Its MO diagram would have one less valence electron than that for "Mg"_2 (presumed in the gas phase!). This is the MO diagram for the NEUTRAL "Mg"_2 dimer: Take one valence electron out of the …