STUDY GUIDE. If atoms of a halogen nonmetal (Group 17) gain one electron, how many valence electrons will the atoms then have? (I think the "a" in the periodic table means the valence electrons but I'm not sure) If the "a" stands for valence electrons than is the "b" considered valence electrons too? Solved How Many Valence Electrons Do Alkaline Earth Metals Have Study . Answers (2) Leopoldina 17 July, 02:55. ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. packerwidow. you find them on the second from last column on the right of the periodic table). Learn term:halogens = elements with 7 valence electrons with free interactive flashcards. Study sets matching "valence electrons chemistry" Study sets. D)7. Answers: 2. continue. The other members belonging to the same family comprise chlorine, fluorine, and iodine. Chemistry, 22.06.2019 03:30, demi9646. Valence Electrons. The halogens posses seven valence electrons; Explanation: Valence electrons are the electrons in the outermost orbitals of the atoms, which are the orbitals with the highest main energy level (principal quantum number). Answers (2) Fonda 22 February, 19:47. What do the A and the B stand for? How long will the footprints on the moon last? ionic compounds. So all halogens have 7 valance electrons. Each carbon atom can bond with several other carbon atoms because of how many valence electrons it has. 5. Why halogens are called halogens? alkaline earth metals valence electrons ? Group of answer choices. This characteristic makes them more … The number of electrons in the valence shell of a halogen is 7. Chemistry. Relevance. So these halogens right over here, these really like to attract electrons to form a negative ion or an anion. mboneal. Metals tend to lose electrons and nonmetals tend to gain electrons. Consider a selenide ion (Se2-). How many valence electrons do halogens have? Valence electrons of an atom are located in the outermost shell of the atom and participate in bonding. 2 B. Fluorine is a halogen. Answers (2) Didrika 10 July, 06:35. 16. Zel. How many valence... Give the electron configuration for scandium. This means that each of these elements have an electron configuration that ends as s^2p^5 F 1s^2 2s^2 2p^5 Cl 1s^2 2s^2 2p^6 3s^2 3p^5 Br 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^5 Each Halogen ends in s^2p^5 with 7 valence electrons. How many electrons does a halogen have? Anonymous. How many valence electrons do halogens have? The alkaline earth metals all react with the halogens to form ionic halides, such as calcium chloride (CaCl Answer: d. Alkaline Our experts can answer your tough homework and study questions. Halogens are highly electronegative, with high electron affinities. The electron configuration... How many valence electrons are in the Lewis-dot... Valence Electron: Definition, Configuration & Example, Valence Electrons and Energy Levels of Atoms of Elements, The Octet Rule and Lewis Structures of Atoms, The Periodic Table: Properties of Groups and Periods, Ions: Predicting Formation, Charge, and Formulas of Ions, Density Lesson for Kids: Definition & Facts, Electron Orbital: Definition, Shells & Shapes, Naming Ionic Compounds: Simple Binary, Transition Metal & Polyatomic Ion Compounds, Lewis Structures: Single, Double & Triple Bonds, What is an Energy Level of an Atom? Which of the following elements has the lowest ionization energy: Rb, Na, C, F, He? Multiple bonds count as a single pair of electrons. These elements are fluorine (F), chlorine (Cl), bromine (Br), Iodine (I), astatine (At), and Tennessine (Ts). good luck, hope this helps :) borrow one electron. Get your answers by asking now. 23 terms. The halogens posses seven valence electrons; Explanation: Valence electrons are the electrons in the outermost orbitals of the atoms, which are the orbitals with the highest main energy level (principal quantum number). How many valence electrons does an atom of any halogen have? K - University grade. A. add water to the strong acid B. add the strong acid to water C. add them in any order 36. They are all in Group 1, so they only have 1 valence shell electron. How many valence electrons are in a chlorine atom? how do you know this? Which element has the electron configuration of 3s23p4 in its outermost shell? Edit. The number of electrons in the valence shell of a halogen is 7. Subatomic Particles: Atoms are the most fundamental building blocks of all matter, and they have within them smaller subatomic particles. The halogens in the next-to-last column (F, Cl, Br, etc.) all have 8 electrons except for Ne, which only has 2 electrons. Q. It is a metal because it it only has two valence (outer level) electrons. 4 years ago. Choose from 475 different sets of term:halogens = elements with 7 valence electrons flashcards on Quizlet. Log in Sign up. Related Questions in Chemistry. Answers: 1 Get Other questions on the subject: Chemistry. When sunlight falls on such surface, free electrons getc vibrated and reflect light. A group is referred to as a column of elements. Determination of Bond Angles . C)4. Click here to get an answer to your question ️ #1: How many valence electrons are in the outermost shell of all halogens? 16 element has the least attraction for electrons of an atom of any halogen have anion! The members of the group number in which the element family halogens, many! 3D10 4p3, these really like to attract electrons to form a negative number of valence electrons are in shell... Increases, the periodic table, have a stable octet, it is recommended that you which. 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