The structure of ozone most closely resembles 1. , a linear molecule with different lengths of chemical bonds. 2. , a bent molec
ule with the same length of chemical bonds. 3. , a linear molecule with the same length of chemical bonds. 4. , a bent molecule with different lengths of chemical bonds.
1 answer:
Answer:
A bent molecule with the same length of chemical bonds
Explanation:
Ozone has three 3 oxygen atoms and its molecular formula of ozone is .
The central oxygen atom is sp2 hybridized and has one lone pair. Because sp2 hybridization and lone pair, shape is bend. Resonance occur in ozone because lone pair and double bond are in conjugation, therefore, ozone can be represented as a resonance hybrid with same bond lengths.
Therefore, option 2 is correct.
A bent molecule with the same length of chemical bonds
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Answer:
The three elements Erbium, Thallium and Osmium have incorrect quantum numbers for the last electron placed.
Explanation:
The 4 quantum numbers are (<em>n,l,ml,ms</em>):
- <em>n</em> (Principal quantum number): it is the <u>number of the shell (level)</u> where the electron is placed.
- <em>l </em>(Angular momentum quantum number or Secondary): it represents the <u>sublevel where the electron is</u> placed. There are 4 subleves: s, p d and f so secondary quantum number can take the number 0 (s), 1 (p), 2 (d) or 3 (f) depending on which sublevel the electron is placed.
- <em>ml</em> (Magnetic quantum number): it represents the <u>spatial orientation</u> of the electron <u>in respect of the sublevel the electron</u> is placed. For example: if the electron occupies the <em>s sublevel</em> the magnetic number will be <em>0</em>, if the electron occupies the <em>p sublevel</em> the magnetic number could be <em>-1,0,1</em>, if the electron occupies the <em>d sublevel</em> the magnetic number could be <em>-2,-1,0,1,2</em> and if the electron occupies the <em>f sublevel</em> the magnetic number could be <em>-3,-2,-1,0,1,2,3</em>. You can see this in the attachment related to the correct sublevel for the example.
- <em>ms</em> (Spin quantum number): this number represents the possible rotation of the electron so it could be 1/2 (which is represented by an up arrow) or -1/2 (represented by an down arrow).
Let's analyze the last electron of each element. You can see the attachment for better understanding. The last electron it is represented with orange color.
- Erbium:
This element has 68 electrons so following the Moeller's Diagram to fill the the electronic configuration, we found that the last electron of Erbium it is in the <u>4th level </u>(shell), in the <u>f sublevel</u>. As Erbium has 12 electrons in the f sublevel, it is necessary to follow the Hund's rule (electrons must be placed singly in every sublevel before place a parallel electron) to placed correctly all of them. Finally, the last electron of Erbium stays in the middle of the sublevel and it is represented by a down arrow so the correct quantum numbers in the Erbium element are (4,3,1,-1/2).
- Thallium:
This element has 81 electrons and following the Moeller's Diagram, we found that it last electron it is in the <u>6th level</u>, in the <u>p sublevel</u>. As Thallium has 1 electron in the p sublevel, it is placed singly in the sublevel. So the last electron of Thallium it is represented by an up arrow so the correct quantum numbers in the Thallium element are (6,1,-1,1/2).
- Osmium:
Osmium has 76 electrons and following the steps that we did with we the other elements, we noticed that its last electron it is in the <u>5th level</u>, in the <u>d sublevel</u>. Following the Hund's rule the last electron of Osmium has a magnetic quantum number of -2 and its spin quantum number is -1/2, so the quantum numbers in the Osmium element are (5,2,-2,-1/2).
<u>Note:</u>
- Remember that the <em>s sublevel</em> has place for 2 electrons, the <u>p sublevel</u> has place for 6 electrons, the <u>d sublevel</u> has place for 10 electrons and the<em> f sublevel</em> has place for 14 electrons.
