How many valence electrons does an atom of any halogen have? When mixing a strong acid and water together, it is recommended that you do which of the following? What do you call a compound that is made of a cation + anion? Valence Electrons DRAFT. How many valence electrons do the halogens have? Here You Go! Update: zel..thank you soo much!!!!! Valence refers to the number of electrons involved in the formation of bonds. 3 Answers. All halogens have seven valence electrons, but as the atomic size increases, the attraction between the nucleus and these outer electrons decreases. 1 B. Chemistry. Bromine is one of the members of the halogen family of elements. ionic bonds . What is a sample Christmas party welcome address? Consider a selenide ion (Se2-). What does contingent mean in real estate? Classes. Which element has the electron configuration of 3s23p4 in its outermost shell? Meanwhile, the number of valence electrons present also helps us determine a specific element’s chemical properties, such as its valence or valency, the formation of bonds with other elements. Join Yahoo Answers … TutorsOnSpot.com. D. Each carbon atom forms either double or triple bonds with surrounding hydrogen atoms. a. Earn Transferable Credit & Get your Degree, Get access to this video and our entire Q&A library. A. add water to the strong acid B. add the strong acid to water C. add them in any order 36. Chemistry, 22.06.2019 03:30, demi9646. mboneal. Show this by using the electron configurations of a transition element and a representative element as examples. 3. A)1. Play this game to review Periodic Table. 17. OTHER … The number of electrons in the valence shell of a halogen is 7. 2.37 mol c. 4.73 mol d. 16.4 mol e. 32.9 mol. True or false? Because graphite and iodine have free electrons. Each carbon atom can bond with several other carbon atoms because of how many valence electrons it has. Metals tend to lose electrons and nonmetals tend to gain electrons. 0 2 8 7 alkaline earth metals valence electrons ? Cl is part of the element family Halogens, which are also known as salt formers. With the exception of groups 3–12 (the transition metals and rare earths), the columns identify by how many valence electrons are associated with a neutral atom of the element. 1 decade ago. 1. Halogens are the elements of the group 17 of the periodic table: F, Cl, Br, I, At. Q. 4 C. 7 … chka8toManuka chka8toManuka 11/30/2016 Chemistry High School #1: How many valence electrons are in the outermost shell of all halogens… Save. 1. , , , 1) Count the total number of valence electrons(TVE): Each halogen has 7 valence electrons.As a single electron is removed from the species to give cation, we have =>; TVE = (7× 3 ) - 1= 20 2) Write the Lewis structure based on octet rule. Answers (2) Leopoldina 17 July, 02:55. Because the halogen elements have seven valence electrons, they only require one additional electron to form a full octet. Thus, the periodic table becomes a tool for remembering the charges on many ions. ionic compounds. As you remember, valence electrons are the ones in the outermost shell. How many electrons are gained or lost when forming an Arsenic ion? Valence Electrons DRAFT. config. 137 times. Answers: 1 Get Other questions on the subject: Chemistry. 4 years ago. STUDY GUIDE. If Bromine is a halogen, then that means it would be found in Group 7. Express the following number in scientific notation. all have 8 electrons except for Ne, which only has 2 electrons. In chemistry and physics, a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair. ... the halogens (group 7), however, become less reactive going down the group as they need to gain 1 rather than lose 7. the reason for this: the more electron shells, the weaker the attraction of the electrons to the nucleus. Learn term:halogens = elements with 7 valence electrons with free interactive flashcards. Users Options. winky. S. The size of an atom generally increases: down a group and from right to left across a period. $6.99. Halogens are highly electronegative, with high electron affinities. 1 decade ago. skylarc714 . 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