To determine:
The number of electrons and electron shells in fluorine along with the number of electrons needed to fill the valence shell.
Introduction:
Fluorine is an element with an atomic number 9. It belongs to halogen family of P-block and group 17 in the periodic table. It is an highly toxic gas which is pale yellow in color It is the most electronegative element and is extremely reactive. Compounds of fluorine are used industries for the manufacturing of products.
For example: sodium fluoride is used in making toothpaste and is also used in drinking water to prevent dental cavities. Hydrofluoric acid is used in making glass bulbs.
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
- Why do the 3s, 3p, and 3d orbitals have the same energy in a hydrogen atom but different energies in a many- electron atom?arrow_forwardLook up the valence electron configuration, covalent atomic radius, effective nuclear charge, first ionization energy and Pauling electronegativity in Chapter 8 (tables are attached). Examine the above data and answer the following questions. a) Explain why some of the elements like TI and Pb on the lower left of the p block are metallic. b) Explain why some of the elements like C, Si in the center of the p block form covalent bonds. Explain why these bonds formed by the network of these elements (as studied in Chapter 25) tend to be unreactive. c) Explain why the noble Group 8A elements are highly unreactive gases. d) Explain why some elements like F, CI, Br etc, on the upper right of the p block are highly reactive nonmetals.arrow_forwardUnshared, or lone, electron pairs play an important role in determining the chemical and physical properties of organic compounds. Thus, it is important to know which atoms carry unshared pairs. Use the structural formulas below to determine the number of unshared pairs at each designated atom. Be sure your answers are consistent with the formal charges on the formulas. H₂C H₂ b Hc N CH2 The number of unshared pairs at atom a is The number of unshared pairs at atom b is The number of unshared pairs at atom c is The number of unshared pairs at atom a is 1 v The number of unshared pairs at atom b is Ov The number of unshared pairs at atom c is 1.arrow_forward
- . Give the name of and symbol for an element with this number of valence electrons.a) 2b) 6c) 8arrow_forwardHow many electrons must a nitrogen atom, Z = 7, gain to attain a noble gas configuration?arrow_forwardIn which of the following pairs is the first element expected to have a higher electronegativity than the second? (1 Point) O O, P O Cs, Rb O I, Br Al, Parrow_forward
- Nitrogen reacts with powdered aluminum according to the reaction:2 Al(s) + N2( g) → 2 AlN(s)How many liters of N2 gas, measured at 892 torr and 95 °C,are required to completely react with 18.5 g of Al?arrow_forwardFerrous sulfate is one dietary supplement used to treat iron-deficiency anemia. What are the molecular formula and molecular mass of this compound? howmany milligrams of iron are in 250 mg of ferrous sulfate?arrow_forwardHow many protons, electrons, and neutrons are present in the following ? Magnesium cation (Mg2+), Chloride anion (Cl-), Carbon -14(14C), and Tritium (3H)?arrow_forward
- (i) MnO is basic whereas Mn207 is acidic in nature. Why? (ii) Transition metals form alloys. Why? (iii) Complete the following equation: 2MnO4 + 4KOH + O2 ———>arrow_forwardWhich electron shell is the valence shell of an atom, and what is its significance?arrow_forwardThe atomic emission spectrum for a particular element includes blue-violet light with wavelength 440. nm. Calculate the energy in joules of this light given that E = h c/A, and h = 6.63 x 10-34Js, and c = 3.00 x 10°m/s. (h andc are constants, A is wavelength, convert nm into m) h c E =arrow_forward
- Principles Of Radiographic Imaging: An Art And A ...Health & NutritionISBN:9781337711067Author:Richard R. Carlton, Arlene M. Adler, Vesna BalacPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning