How many valence electrons are there in a fluorine atom?
Q. How many valence electrons are there in a fluorine atom? How many electrons does fluorine need to share to become stable?
Asked by Charlie - Sun Apr 6 11:25:30 2008 - - 2 Answers - 0 Comments

A. 7. It needs to share one more to be stable.
Answered by John D - Sun Apr 6 11:36:59 2008

How is effective nuclear charge related to the electron affinity of oxygen and fluorine?
Q. (more than one answer is possible) The fluorine has a larger effective nuclear charge than oxygen. The electron affinity becomes more exothermic (negative) as the effective nuclear charge increases. The electron affinity becomes more endothermic (positive) as the effective nuclear charge increases. The fluorine has a less exothermic electron affinity than oxygen. The fluorine has a more exothermic electron affinity than oxygen.
Asked by domican - Thu Nov 13 14:39:43 2008 - - 1 Answers - 0 Comments

A. The fluorine has a larger effective nuclear charge than oxygen. NO The electron affinity becomes more exothermic (negative) as the effective nuclear charge increases. YES The electron affinity becomes more endothermic (positive) as the effective nuclear charge increases. NO The fluorine has a less exothermic electron affinity than oxygen. YES The fluorine has a more exothermic electron affinity than oxygen. NO
Answered by Ezra - Thu Nov 13 18:36:08 2008

What are the formulas of the five species that bromine can form with fluorine?
Q. Bromine can form compounds or ions with any number of fluorine atoms from one to five. Write the formulas of all five of these species.
Asked by John - Fri Oct 30 13:02:02 2009 - - 1 Answers - 0 Comments

What is the name of the ionic compound that forms when bismuth and fluorine react?
Q. Does anyone know the name and formula when bismuth and fluorine react? I'm not sure if it would be BiF3 or BiF5 or neither of those.
Asked by Sharon R - Mon Sep 3 19:52:39 2007 - - 1 Answers - 0 Comments

A. The compound is BiF3 bismuth fluorine ( more stable )
Answered by Dr.A - Thu Sep 6 09:21:51 2007

What would actually happen if you reacted francium with fluorine?
Q. If you just reacted a tiny bit of francium with a small amount of fluorine, what would the scale of the explosion be? ~Mystic.
Asked by ~ Mystic Dreams ~ - Sun Mar 8 16:14:01 2009 - - 3 Answers - 0 Comments

A. Francium very readily gives up an electron to form the Fr+ ion. The lost electrons (in pairs) are picked up by the flourine molecules. F2 + 2e ===> 2F- Very energetic.
Answered by lykovetos - Mon Mar 9 11:15:04 2009

Is fluorine added to tap water in the UK?
Q. One of my british friends told me that fluorine is added to tap water in the UK. Is it true? I'm Japanese and was very surprised to hear that.
Asked by nashizuki - Thu Nov 22 02:50:32 2007 - - 7 Answers - 0 Comments

A. Yes fluoride is added to water in some parts of the UK but there is a growing lobby of descent about it,after all it is nothing more than a by product of the aluminium smelting industry,
Answered by Happy Murcia - Thu Nov 22 02:58:10 2007

What's a common, everyday material with fluorine (the element) in it?
Q. I'm doing a project for Chemistry on fluorine and I have to bring something to class with fluorine in it. I know toothpaste has it, but do any foods? Gum, for example? Thanks for your help!
Asked by asister20 - Sun Mar 8 21:23:22 2009 - - 1 Answers - 0 Comments

How much fluorine is formed in this problem?
Q. The mass ratio of sodium to fluorine in sodium fluoride is 1.21:1. A sample of sodium fluoride produced 26.5 of sodium upon decomposition. Could you please explain how you got the answer too? Thanks
Asked by ~Princess~ - Wed Sep 23 14:37:41 2009 - - 1 Answers - 0 Comments

A. This isn't complicated. Say the question said that the mass ratio of a compound was 3:2, and you got 9 grams of the first out, you'd get 6 grams of the second. Divide by the sodium side (1.21) and multiply by the fluoride/fluorine side (um, 1).
Answered by Tweek - Wed Sep 23 15:22:36 2009

What does the element Fluorine look like?
Q. I need to write a children's book to teach them about Fluorine and I was wondering how I could turn Fluorine into a fun character What does it exactly look like?
Asked by Christine Murai - Sat Sep 13 16:42:17 2008 - - 2 Answers - 0 Comments

A.
Answered by Hannah - Sat Sep 13 16:46:04 2008

In a molecule of fluorine how many shared electrons are there in each fluorine atom in the outer energy level?
Q. In a molecule of fluorine how many shared electrons are there in each fluorine atom in the outer energy level? Choices: a)1 b)2 c)8 d)32
Asked by seaworldfan2010 - Sun Nov 18 10:23:37 2007 - - 3 Answers - 0 Comments

A. We only concern ourselves here with the p electrons. Each Fluorine atom has five electrons on its outermost shell. Only one electron is available for bonding. The others are paired. The key word to see is 'shared'. The bonding electron pair is shared between two atoms in each fluorine molecule. Each fluorine atom has that bonding pair in a p orbital. Paradoxically, each fluorine atom has two shared electrons as specified in the question, even though the total of shared electrons is two. Drawing a picture would make this easier to follow.
Answered by Sciman - Sun Nov 18 10:33:24 2007

According to the octet rule, which of the following are possible combinations of nitrogen and fluorine?
Q. According to the octet rule, which of the following are possible compounds of nitrogen and fluorine? Select all that apply NF2 NF3 N2F2 NF Could you also explain how this works? I thought I understood it but I can't get the correct answer.
Asked by DefyGravity44 - Wed Nov 19 19:59:44 2008 - - 1 Answers - 0 Comments

A. NF3,because N has 5 and F has 7 so use that to do the Lewis and Dot Formula. Trust me it is the right answer.
Answered by Cubs Fan - Wed Nov 19 22:44:23 2008

How do you make a pure sample of fluorine?
Q. i have a chemistry project and its asking me how to make a pure sample of fluorine? how do i? someone please help
Asked by Luver123 - Thu Feb 12 19:27:17 2009 - - 3 Answers - 0 Comments

A. There was only one chemical means of producing fluorine, but is not economical nor efficient. The only other methods used involves electrolysis of various fluoride salts or hydrogen fluoride. Please look up fluorine and it will tell you exactly how it's done. Now, I hope that you are not expected to actually perform this procedure. The reason is clear, fluorine is a vicious, wicked species. It eats anything it touches. It can cause ice to "flame on". If you breathed just a tiny bit of this element, it will literally burn the life out of you. Depending how in depth you read, it might also tell you how many chemists died in trying to isolate this element fluorine. In naming this element they should have switched with bromine (stench) rather… [cont.]
Answered by Terry R - Thu Feb 12 19:46:20 2009

Why does fluorine have a smaller atomic radius then both oxygen and chlorine?
Q. Why does fluorine have a smaller atomic radius then both oxygen and chlorine?
Asked by LuI323 - Thu Nov 20 19:41:58 2008 - - 1 Answers - 0 Comments

A. it has a greater electronegativity...in laymen terms...the increase number of protons have a greater attraction (for the oxygen example) and the flourine has 1 less electron shell than chlorine thus smaller.
Answered by The Cheminator - Thu Nov 20 19:56:12 2008

What multiplier (coefficent) is needed in front of fluorine, F-F, to balance the equation?
Q. What multiplier (coefficent) is needed in front of fluorine, F-F, to balance the equation S6(s) + ___ F2(g) ---> 6 SF6(s)
Asked by Marie - Mon Mar 3 23:01:11 2008 - - 3 Answers - 0 Comments

A. 18 F2 (to balance 6 x 6 F on the other side)
Answered by Just-Jon - Mon Mar 3 23:04:45 2008

What is the name, formula, and uses for two compounds containing the element Fluorine?
Q. I'm doing a chemistry project and need to know. Also, does anyone know how to make a pure sample of Fluorine? I'm not being asked to actually make it, I just need to know how it's done. Thanks :D
Asked by All<3 - Thu Sep 17 11:56:43 2009 - - 1 Answers - 0 Comments

A. Hydrofluoric Acid- Used to etch glass Polytetrafluoroethylene- Also known as Teflon. Used as nonstick coating for cooking utensils. Pure Fluorine gas is prepared by electrolysis of Hydrogen Fluoride in the presence of Potassium Fluoride. The basic reaction is: HF + KF ---> KHF2 2KHF2 --> 2KF +H2 + F2 The Fluorine gas is evolved at the anode, and Hydrogen gas is evolved at the cathode. Note: Fluorine and many of its compounds are extremely reactive and dangerous! Do not try this at home. Hope this helps
Answered by unknown - Thu Sep 17 12:10:06 2009

How many atoms of fluorine are present in a molecule of CF4?
Q. Help! The anwser is not 4! I dont have the formula to get the anwser.
Asked by Holly - Wed Nov 12 20:05:28 2008 - - 2 Answers - 0 Comments

A. You're kidding, right? Just look at the formula. It's 4
Answered by drummerboy - Wed Nov 12 20:08:55 2008

How many electrons does a fluorine atom need to share to become stable?
Q. It's a molecular compounds question.
Asked by kestamaria - Sun Nov 4 15:23:15 2007 - - 1 Answers - 0 Comments

A. You might already know that F- has a valence electron of 7 and in order for it to be stable it must have 8 electrons so it will share it's 1 unpaired electron with another atom to gain 8 electrons altogether. :) I hope this helps! Good luck! :) Love, Mary
Answered by Mary - Sun Nov 4 16:18:51 2007

Is it possible to contain fluorine by maintaining a electical charge on the container?
Q. for example, a positive charge, so there would be no electrons available to fill the outer valence shell. Probably a silly question, but I am a sparky, not a chemy, so I am asking the experts.
Asked by MR.B - Mon Jan 21 10:05:06 2008 - - 1 Answers - 0 Comments

A. Yes you can do that. You need some copper or some conductibe metal to make it last. But it can be done.
Answered by Whats Up Doc - Tue Jan 29 07:47:03 2008

What is the best way to remove fluorine, chlorine, drugs and other contaminants from water?
Q. If it's something I have to buy or make, what is the best kind and how much should it cost to work best?
Asked by deva s - Tue Aug 18 06:56:59 2009 - - 9 Answers - 0 Comments

A. Distillation is the way to remove everything from the water. That means that you need to boil it, and catch the steam and condense it. Remember that in using a filter, such as a brita, that it soon becomes full of the stuff you are trying to remove. Then it does not remove more, and can even grow and add more bacteria to the water.
Answered by science teacher - Tue Aug 18 11:09:52 2009

For fluorine, how many excited state configurations are there in which no electron has n>2?
Q. Well i haven't studied this excitory stuff yet but i saw it as one of my revision questions so i don't know what it means could someone please explain what an excited state configuration is (and not just a definition if that's ok) and how i would come up with an answer please - for flourine and maybe another easy example too?
Asked by Help D;!! - Fri Apr 24 07:45:54 2009 - - 1 Answers - 0 Comments

A. F electron configuration: 1s2 2s2 2p5 This is the ground state. An excited state is whenever an electron is located in a higher energy level (i.e. 1s2 2s2 2p4 3s1, where one p electron has jumped to the next s orbital). For this question, electrons can't be higher than n = 2, which limits your options. Ground state: 1s2 2s2 2p5 Excited state: 1s2 2s1 2p6 Excited state: 1s1 2s2 2p6 That's really all that's possible. If n = 3 was allowed, there would be many more (too many to write out) possibilities.
Answered by unknown - Mon Apr 27 09:42:35 2009