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April 18, 2014

Search: orbitals

Number of results: 283

Chemistry
(1) Which of the following clusters of orbitals would form the shape trigonal bipyramidal and would also be possible within the valence shell of an atom? a.) one d orbital b.) five d orbitals c.) five sp^3 orbitals d.) five sp^3d orbitals e.) five sp^3d^2 orbitals f.) two sp ...
Thursday, April 1, 2010 at 5:57pm by Kirsten

Chemistry
All of the following are true EXCEPT; A. the n=4 energy level has no f orbitals B. the 2p orbitals can have a maximum if 6 electrons C. the s orbital has a spherical shape D. there are 5 orbitals in a set E. the n=3 energy level has a set of d orbitals.
Sunday, November 18, 2007 at 4:29pm by Lauren

chemistry
How would the 2s and 3p orbitals differ from the 1s and 2p orbitals? Check all that apply. possible answers The and orbitals would have more nodes than and orbitals. The orbital would be the same shape as the orbital but would be smaller in size. The and orbitals would have ...
Saturday, December 1, 2012 at 10:01pm by kdb

Chemistry
You must have some idea. For example, you can put 14 electrons in f orbitals (# f orbitals = 7 and that x 2 electrons each = 14) and 10 in d orbitals (number d orbitals = 5 and that x 2 = 10 electrons).
Monday, January 30, 2012 at 10:43pm by DrBob222

Chemistry
You have 1 s orbital, no matter where it is. You have 3 p orbitals, 5 d orbitals, 7 f orbitals. spdf= 1,3,5,7 electrons in each = 2,6,10, 14
Sunday, April 4, 2010 at 1:33pm by DrBob222

Chem?
I know I was and that is correct. An expanded octet cannot occur with atoms less than atomic number 10 (neon) because there are no d orbitals. So you are correct; I believe Br is the only one with an atomic number larger than 10. I brought up P and S but those elements ARE ...
Wednesday, November 14, 2007 at 9:29pm by DrBob222

CHEMISTRY
a. ) The bond length is the internuclear distance. b. ) The covalent bond is a region of high electron charge density between two atoms. c. ) Hybrid orbitals are combinations of atomic orbitals. d. ) There are the same number of hybrid orbitals produced as the number of atomic...
Friday, July 3, 2009 at 2:32pm by David

chemistry
Or one can argue that the nitrogen has a set of p orbitals that is half filled and half filled orbitals (or filled orbitals) are more stable than those that are not.
Saturday, September 18, 2010 at 1:30pm by DrBob222

Chem
Just remember 1s 2p 3d 4f There is/are 1 s orbital, 3 p orbitals, 5 d orbitals, and 7 f orbitals. Since each orbital can hold two electrons there are 2s, 6p, 10d and 14f electrons. For As, go to www.webelements.com and scroll to electron configuration.
Wednesday, September 29, 2010 at 8:41pm by DrBob222

chemistry
There is nothing in the problem that says the number of orbitals is 2L+1 is there? And since this is in another world I don't know that we can assume that is the number of orbitals. The way I see it is if L = N, then we have L=1 with subshells of -1, 0, and +1 which makes ...
Wednesday, November 12, 2008 at 9:05pm by DrBob222

chemistry
If n = 3, then l(ell) can be 0, 1(the #1), or 2; therefore, you can have s, p and d subshells. If n = 4, then l can be 0, 1, 2, or 3 and subshells can be s, p, d, and f. s has 1 orbital and 2 electrons. p has 3 orbitals and 6 electrons. d has 5 orbitals and 10 electrons. f has...
Wednesday, September 8, 2010 at 5:28pm by DrBob222

Chemistry
This question is: How many orbitals are there in each of the following energy levels.. a) 1s b) 6p c) 10f d) 7d e) 5s Now.. do i use n^2 for the number of orbitals in each energy level? Ex. b) would be 36 OR can i state the number of orbitals in each sublevel using the shape? ...
Sunday, April 4, 2010 at 1:33pm by Jeff

chemistry
Suppose you live in a different universe where different amount of quantum numbers is required to describe the atomic orbitals. These quantum numbers have the following rules: N principal 1,2,3,. L orbital =N M magnetic -1. 0. +1 How many orbitals are there all together in ...
Wednesday, November 12, 2008 at 9:05pm by Jordan

Chemisty Help!!!!!!!!
show how you would obtain (the orbitals used) and the possible types (the orbitals produced) for hybridization of a carbon atom. you must report the shape and the number of orbitals of each type used and produced for each type of hybridization.
Monday, April 9, 2012 at 9:08pm by Amanda

chemistry
The number of d orbitals, anywhere they are found, is 5; however, there are no d orbitals at all in N = 2.
Tuesday, May 6, 2008 at 8:48pm by DrBob222

CHEMISTRY
Which statement about structure and bonding is INCORRECT? a. ) The bond length is the internuclear distance. b. ) The covalent bond is a region of high electron charge density between two atoms. c. ) Hybrid orbitals are combination of atomic orbitals. d. ) There are the same ...
Friday, July 3, 2009 at 2:32pm by David

chemistry
Are d orbitals included in hybrid orbitals?
Friday, December 7, 2007 at 12:32am by Pam

Chem
Hey in class we learned that pi molecular orbitals come from overlapping p atomic orbitals...this occurs in a conjugated system or aromatic rings ( contains sp2 carbons with one remaining p orbital which can can overlap to form double bonds)...my question is why does it have ...
Saturday, February 23, 2013 at 8:55pm by Leena

Chem?
In my first response, I believe I was thinking of hybridization. Atoms with no d orbitals can form s and p hybrids but not s, p, and d hybrids (since no d orbitals are there.)
Wednesday, November 14, 2007 at 9:29pm by DrBob222

chemistry
There are 3 orbitals in the p level; each orbital holds two electrons for a total of six electrons. All p orbitals are 3 in number.
Wednesday, February 8, 2012 at 10:23pm by DrBob222

Chemistry
why are the orbitals of the hydrogen atom described as probability maps? Why are the edges of the hydrogen orbitals sometimes drawn to appear "fuzzy"?
Thursday, March 25, 2010 at 2:25pm by student

Chemisty Please Help
there are three orbitals and each can hold 2, opposing charges. So the p orbitals can hold up to 6.....
Sunday, November 25, 2007 at 7:03pm by Jen

Chemistry
Are 5s and 5p considered to be degenerate orbitals? I know degenerate orbitals mean that they have the same energy but different spatial arrangement.
Monday, April 5, 2010 at 11:10am by echem

AP Chemistry
For CH4 you have hybridized 1s and 3p orbitals; therefore, the hybrid orbitals are 25%s (1/4) character and 75%p (3/4) character.
Wednesday, October 6, 2010 at 8:45pm by DrBob222

science-chemistry help
I really need help on the concept of bonding and antibonding orbitals. I know you use sigma molecular orbitals to use with the antibonding and bonding. Can you explain to me how you actually use them with the sigma molecular orbitals and what purpose they have? I'm confused on...
Thursday, February 15, 2007 at 9:37pm by jisun

physical science
Which electron cannot occurr? a) 1s^22s^1 b) 1s^2 2s^2 2p^6 3s^2 c) 1s^2 1p^6 2s^2 2p^6 d) all can occurr How do I figure this out? s orbitals can contain 2 electrons maximum and p orbitals can contain 6. I do not see this condition being violated in any of the configurations ...
Tuesday, June 13, 2006 at 6:29pm by Elda

AP CHEM
You need to remember that n = principal quantum number and can take on values of 1, 2, 3, ..... l (as in ell) takes on integral values of 0, 1, 2, etc with the maximum being n-1. ms can take on integral values from -ell to + ell (including zero). ms takes on only two values; i...
Tuesday, October 21, 2008 at 10:48pm by DrBob222

chem
Write the orbital notation for chromium. Type your answer using the noble gas abbreviation of the configuration and only the symbols in the table below. Enter the major energy levels with their sublevels in the order in which they are filled. Enter filled orbitals in a ...
Thursday, May 2, 2013 at 6:15pm by samantha

chemistry
How many atomic orbitals are formed duing a pi bond between p two orbitals? Does the pi bond count as another orbital? Im confused if the answer is 3 or 2? can someone help me :(
Sunday, February 7, 2010 at 9:45pm by Jason

chemistry
The six orbitals on the central atom, As, are sp^3d^2 hybrids. That is the kind of hybridization you have in an octahedral structure, "XY6". Each of the hybrid orbitals on the As atom is forming a sigma bond with the half filled p orbital on an F atom.
Wednesday, September 30, 2009 at 6:38pm by GK

science
This is a science question so be prepared. lol How many orbitals does hydrogen (H) have? 1 or 2 or 3 How many orbitals does oxygen (O) have? 1 or 2 or 3
Monday, February 25, 2008 at 10:56pm by JAKE

CHEM AP please help!!
Why does the octet rule not hold for many compounds containing elements in the third row of the periodic table and beyond? (Select all that apply.) 1. Atoms of elements in the third period are less subject to destabilization from additional electron-electron repulsions. 2. ...
Monday, November 7, 2011 at 5:32pm by kali maa

chem
How many orbitals have the values n3=4 and l3=3 How many orbitals have the values n=4, l=3, and ml=-2
Wednesday, December 1, 2010 at 2:52pm by Kay

Chem
How many orbitals have the values n_3=4 and l_3=3 ? How many orbitals have the values n=4, l=3, and ml=-2?
Wednesday, December 1, 2010 at 7:36pm by Kay

Chem
Generally, your instructor is correct. Hund's rule says that electrons will enter the unoccupied orbitals unpaired and pairing will not begin until all of the orbitals are half filled. That is the 2p orbitals can be 2px1, 2y1 and 2pz1 before they begin pairing up. The next ...
Tuesday, July 7, 2009 at 3:11pm by DrBob222

chemistry
Structural formulas show the connectivity of atoms. For example, CH4 would look like this.   H   | H-C-H   |   H Hope that looks ok. If not I'll try to find a better drawing on the Internet. Hybridization is not what you have tried to define. Hybridization is ...
Tuesday, May 5, 2009 at 10:14pm by DrBob222

AP Chem
c.) The NO2 -1 ion exhibits resonance, giving bonds of equal length, but in HNO2, the bonding of the H atom fixes one oxygen atoms bond to N as a single bond. The other oxygen atom is bonded to the nitrogen with a double bond. There is no resonance in HNO2. d) The central ...
Tuesday, January 9, 2007 at 3:36pm by asdfghjk

chemistry
How does Carbon hybridize it's S and P orbitals and what effect does this have on the 3D structure and chemical behavior? Your answer must include 1) diagrams of SP, SP2, and SP3 bonds as well as any left over Py or Pz orbitals; 2) a discussion with diagrams of how the sigma (...
Sunday, January 23, 2011 at 5:27am by Bam

Chem
How many orbitals have the values n_3(n sub 3) n_3=4 and l_3(l subscript 3) l_3=3 ? How many orbitals have the values n=4, l=3, and m_l=-2? I tried 2 for this one but that is not the correct answer. Could you please help I do not know how to figure out these two problems.
Thursday, December 2, 2010 at 6:11pm by Kay

ap chem
Show how a hydrogen 1s atomic orbital and a fluorine 2p atomic orbital overlap to form bonding and antibonding molecular orbitals in the hydrogen fluoride. Are these molecules sigma or pi molecular orbitals?
Wednesday, January 2, 2013 at 11:19am by bob

Chemistry
The pi-2p orbitals are lower in energy than the sigma-2p in NO+ because of nitrogen, so they fill before the sigma-2p. The same configuration applies to CN- because both carbon and nitrogen are small atoms. The 2s and 2p orbitals on carbon are higher in energy than on oxygen. ...
Sunday, October 13, 2013 at 1:07am by sigma_pi

Chemistry - Hybridization
Can anyone help me with this questioin pleasee? Describe the orientation and relative energy levels of sp2 and sp3 orbitals with respect to unhyberdized orbitals (1s, 2s, 2px, 2py, 2pz orbitals) 1s and 2s are spherical. 2px, 2py, and 2pz are at 90o to each other (mutually ...
Tuesday, December 5, 2006 at 11:51am by Eunice

chemistry
which orbitals in the molecular orbital diagram contain the lone pair electrons around O? My answer: one of the lone pairs on oxygen exist in an "s" orbital. two of the lone pairs exist in "p" orbitals not involved in bonding. -is this correct.
Wednesday, May 28, 2008 at 8:01pm by Andrew

cHEMISTRY
6C is 1s2 2s2 2p2 Unpair one of the two electrons in the 2s orbital and promote it to the 2p. It now looks like this: 1s2 2s1 2p3 Now hybridize the 2s and 2p orbitals to give sp3 hybrid orbitals (that's four places to bond with hydrogen so the H adds one electron to each of ...
Sunday, November 25, 2007 at 7:33pm by DrBob222

Chemistry
Hi!! Okay So I have this question here and you have to pick the false statement. Now I believe its a or e. But I really can't decide which it is. I might be totally wrong about this which is why I need some help... please! These are the options: a. the bond length is the the ...
Friday, July 3, 2009 at 3:00pm by Josh

science
1s2 2x2 2p6 3s2 3p6 is the electron configuration ofr for which ion? I believe your 2x2 should be 2s2. You have 18 electrons in filled orbitals. That could be a +1 charged element 19 (K+) or a +2 charged element 20 (Ca++) \, for example. In either case, it is a very stable ion...
Wednesday, July 25, 2007 at 3:19pm by jane

chemistry
A pi bond is the sideways overlap of two p orbitals. The sigma bond is a head to head overlap of and s and p or two p orbitals
Thursday, December 6, 2007 at 1:42am by DrBob222

Chemistry
Hi! I have a question about Pi-Bonds: a. ) are the only kind of bonds present in double bonds b. ) have very little electron density along the internuclear axis c. ) are formed by endwise overlap of p-orbits d. ) are formed from hybrid orbitals e. ) are formed from s-orbitals ...
Thursday, July 2, 2009 at 12:46pm by Josh

Chemistry
I'm supposed to find the quantum numbers for a 5py orbital. I'm not sure how to do this, can anyone help? N=5 l = 4 3 2 1 0, for p you want l = 1 ml= -1 0 +1 representing px, py, and pz orbitals. ms= +1/2 and -1/2. Look at a diagram in your book for the px, py, and pz orbitals...
Sunday, November 26, 2006 at 5:33pm by John

College Chemistry
How many orbitals have the following quantum numbers: n=6, l=2, ml=-2?? a. 0, b. 5, c. 7, d. 10, e.6 Since only one can include n=6 in its equation would it make it just one orbital having those numbers? im also thinking that there might be other orbitals that have these ...
Tuesday, April 6, 2010 at 8:19pm by James

COOKING
I think you mean leavening (not leaving). http://www.orbitals.com/self/leaven/index.html
Thursday, November 12, 2009 at 6:04pm by Ms. Sue

Chemistry - Bond Order
Its no unpaired electrons because theres 2 unpaired electrons on N? If there was 1 it would be paramagnetic then? And to find Bond Order Bond order = 1/2 (Nb - Na) 1/2 (6 - 2) = 2 so its stable? Or am I wrong? Says Nb = bonding orbitals and Na = antibonding orbitals
Sunday, May 2, 2010 at 9:35pm by Coldier

Chem
I answered your last response below. Start a new thread if you have further comments about the same question. I think you just need to remember that these are ground states we are talking about, that the 2s is one orbital; the 2p are three different orbitals, and that Hund's ...
Tuesday, July 7, 2009 at 5:47pm by DrBob222

Chemistry
Is this always true, sometime true, or never true? The orbitals of a principal energy level are lower in energy than the orbitals in the next higher principal energy level. -I'm thinking sometime true but I can't figure out how to explain why it sometime true. Thanks
Tuesday, November 6, 2012 at 1:15am by Shadow

CHEMISTRY
If I am understanding correctly what you are asking, the 3p orbital can only hold 6 electrons and here it has 5 so it needs 1 more to complete its octet? It would accept 1 electron from the carbon? So the carbon is the one with the hybridized orbitals. The Cl orbitals dont get...
Thursday, August 23, 2007 at 4:07pm by AMY

chem.
Electrons are paired in an orbital. One electron is +1/2 and the other electron is -1/2. There are only two ways that the electron can spin. The TOTAL number of p orbitals depends upon how many principle levels you have ; i.e., if n = 1, 2, 3, or what have you. For any n level...
Wednesday, October 1, 2008 at 11:09pm by DrBob222

CHEMISTRY (WEBWORK)
SPARTAN: Use the information from question #1 to answer the following. A. Which two orbitals from CV+ and OH will overlap creating the C-O bond in CVOH? ______ (Use i, ii, iv, etc. for your answer) B. Which of the following accurately shows the orbital interaction that leads ...
Saturday, July 17, 2010 at 10:59pm by june

Science/Chemistry
How many electrons can occupy a single molecular orbital? and Alumimum is a group 3A metal, Which ion does A1 typically form? I'm thinking Al3+ Your first question depends on the molecule involved and how it is bonded. Hybrid molecular orbits can be formed. Now in an atom, ...
Wednesday, January 10, 2007 at 6:30am by Devon

Chemistry- DRBOB!! PLEASE?
Molecular orbitals are orbitals for shared electron pairs (also called covalent bonds). They are based on Quantum Mechanics and they have been developed fully for only for diatomic molecules through the second row of the periodic table. There are two kinds of orbitals: Bonding...
Tuesday, November 4, 2008 at 11:37pm by GK

Chemistry
Hi, I have another question... I need to write a reaction for the preparation of americium by reducing AmF3 with barium vapor at 1100C I'v looked and can't find anything that will help me with this... (I'm preparing for finals, so this might not be my last question!) Thanks ...
Saturday, June 9, 2007 at 9:05pm by Lacey

intergrated science1
orbitals?
Monday, December 17, 2007 at 8:59pm by DrBob222

Chemistry
How many possible orbitals are there for n= 4?
Sunday, November 18, 2012 at 3:56pm by Daniel

Chemistry
16. n^2= number of orbitals
Sunday, November 18, 2012 at 3:56pm by Matthew

chem
Ground state of 26Fe. 1s2 2s2 2p6 3s2 3p6 3d6 4s2 So to make the 3+ ion, we remove the 2 outside electrons (the 4s2 electrons) + 1 more from the 3d orbital. Therefore, the ground state for the 3+ ion is 1s2 2s2 2p6 3s2 3p6 3d5 Hund's rule of maximum multiplicity says that ...
Saturday, November 1, 2008 at 8:01pm by DrBob222

chemistry
How do you calculate the amount of nodes in orbitals?
Tuesday, August 30, 2011 at 5:57pm by Van M

chem
What is the total number of orbitals possible for n = 3
Thursday, April 9, 2009 at 8:42pm by Sandra

Chemistry
Which element is filling the 3d orbitals?
Sunday, May 31, 2009 at 3:05pm by DrBob222

Chemistry
Correct. It is the C which has hybrid sp3 orbitals.
Thursday, July 15, 2010 at 2:17am by bobpursley

chemistry
Electrons are in the s, p, d, or f orbitals. I don't know what PDO stands for.
Thursday, October 13, 2011 at 10:45pm by DrBob222

Chemistry
How many electrons and orbitals are represented by 2s2
Wednesday, March 14, 2012 at 10:21am by Joey

chemistry
which orbitals have centre of symmetry
Saturday, May 18, 2013 at 8:18am by kuldeep

Chemistry (WebWorks)
i. HOMO of CV+ from Table 1 ii. LUMO of CV+ from Table 1 iii. HOMO of -OH from Table 1 iv. LUMO of -OH from Table 1 v. HOMO of CVOH from Table 1 vi. LUMO of CVOH from Table 1 vii. in phase overlap of orbitals from -OH and the center carbon of CV+ viii. out of phase overlap of ...
Monday, July 19, 2010 at 3:17pm by Anonymous

Basic chem question
3dz2 how many orbitals can this have?? what is the z?
Tuesday, October 21, 2008 at 10:43pm by Sally

chem
what is the orbital diagram for Au+, how do you fit the f orbitals in?
Sunday, November 23, 2008 at 10:37pm by Natash

SCIENCE/CHEM
how many electrons can be contained in all orbitals with n=4??????
Wednesday, May 12, 2010 at 9:12pm by Andy

Chemistry
What shell contains a total of 16 orbitals? A. n = 1 B. n = 2 C. n = 3 D. n = 4 E. n = 5
Sunday, October 2, 2011 at 3:53am by Ninaya

Chem
There is no easy way without drawing diagrams and diagrams are somethings these boards can't handle. So below are some pictures I found on the net. The long and short of it though is that sigma bonds are formed by the end to end mixing of two orbitals while the pi bonds are ...
Wednesday, June 18, 2008 at 10:52pm by DrBob222

Chemistry
What are the 3 rule the govern the filling of atomic orbitals by electrons?
Monday, October 8, 2007 at 7:29pm by Matthew

Organic Chem
What orbitals are used to form the CB bonds in B(CH3)3?
Monday, September 7, 2009 at 12:05pm by Anonymous

Organic Chemistry
What orbitals are used to form the CB bonds in B(CH3)3?
Monday, September 7, 2009 at 12:05pm by Anon

chemistry
what subshells would be found in the shells with n=3 and n=4?how many orbitals are there in a g subshell?
Wednesday, September 8, 2010 at 5:28pm by kabelo

Chemistry 2
How many orbitals in an atom can have each of the following designations? (a) 3p (b) n=1
Wednesday, September 15, 2010 at 11:34pm by Jon

Chemistry
What is the total number of orbitals having n = 5 and ℓ = 3? A. 3 B. 5 C. 7 D. 9 E. 10
Sunday, October 2, 2011 at 3:52am by Ninaya

CHEMISTRY
No. Carbon has no d orbitals; therefore, it can't have an expanded octet.
Saturday, May 12, 2012 at 4:58pm by DrBob222

chemistry
How many orbitals are contained in the n=2 level? Give the l and ml values of each of them.
Monday, January 28, 2013 at 12:52am by savannah

Chemistry
Thanks Dr.Bob On the periodic table, which block has 5 orbitals? Is it s, p or f? Thanks.
Wednesday, February 20, 2013 at 11:16pm by mia

Chemistry 2
There cn be three p orbitals, no matter where they are. There can be 1 orbital for n=1 (and 2 s electrons can fit there).
Wednesday, September 15, 2010 at 11:34pm by DrBob222

Chemistry
what is the sp hybrid orbitals for carbon molecules in CH3-C=C-CH2OH?
Sunday, May 8, 2011 at 3:55pm by Kimmy

chemistry
how many orbitals are in the 6p sublevel? I wrote 6 but I want to make sure I am doing this right.
Wednesday, February 8, 2012 at 10:23pm by larry

Chemistry
1). No, you don't have it right. Co electron configuration is [Ar]3d74s2. To make the Co(II) ion, we remove the two 4s electrons so it now is [Ar]3d7. Since there are five d orbitals, placing 7 electrons can't be done evenly so it must have some unpaired electrons which makes ...
Wednesday, November 2, 2011 at 11:05am by DrBob222

Chemistry
Not 100% sure, but I say it's D. I think there are only 4 orbitals: s(2), p(6), d(10), f(18).
Sunday, November 18, 2007 at 4:29pm by Jake

Chemistry
I do not understand sp,sp2,sp3 hybridization. How do they form from the valence orbitals?
Thursday, December 6, 2007 at 1:52pm by Lu

Chemistry
There must be 6, right. One in the 4s orbital and five in the 3d orbitals.
Sunday, December 5, 2010 at 12:22pm by DrBob222

chem.
How many electrons can an orbital hold? I know the answer is 2, but how do you get there? And how do you figure out how many 2p orbitals there are in an atom?
Wednesday, October 1, 2008 at 11:09pm by CONFUSED

chemistry
How many degenerate orbitals are needed in CIF5 to contain seven electrons with five of them unpaired?
Sunday, November 2, 2008 at 10:14pm by ashley

Chemistry 3
For each of the following sublevels, give the n and l values and the number of orbitals. (a) 3s (b) 5f (c) 5g
Wednesday, September 15, 2010 at 11:36pm by Jon

Chemistry
Are hybridized orbitals used to explain the fact that the four bonds in methane are equivalent? If not, what is?
Monday, April 16, 2012 at 8:38pm by Grace

chem
What are the similarities and differences between the hydrogen atom 2s and 3s orbitals? a) What are the similarities and differences between the hydrogen atom 2s and 3s orbitals? b) What are the similarities and differences between the 2s orbital and a 2p orbital? c) For the ...
Tuesday, August 17, 2010 at 5:20pm by gabyj

chemistry
Through element #20 (Ca), it is 1s2 2s2 2p6 3s2 3p6 4s2. For elements 21 through 30 (Sc through Zn) you fill the d orbitals. The way to remember how many d electrons (there are two exceptions) is it's the second number of the atomic number. That is Sc has 21 (from the 1 in 21...
Saturday, September 22, 2012 at 11:02pm by DrBob222

Chem?
We usually count those element that don't have d orbitals as not being able to expand the octet.
Wednesday, November 14, 2007 at 9:29pm by DrBob222

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