Question

In general, there is a gradual change in physical prope as one proceeds through a Group. Consult the Handbook Erx and Physies and look up the vapor densities, melting points, colors and atomic weights for the halogens. ensitxteltina Pointec Calor atonic Neisht Name Fluorine Chlorine Bromine Iodine What ould you prediot to be the density, m.P.. color and atomic weight of element 85, At, based on the above trends? density: melting point: colori atomic weight: 6. Write the electron configuration for Phosphorus when bound usually exhibits a +5 or -3 oxidation state. Explain yhy and hox this occurs. 7. Write the elc or atoms. tron configuration for each of the following ions 7N 0-2 8 9F-1 1oNe 11Na*1 . 12Mg+2 What do you notice about the electron configurations? Draw an arrow in the direction of inereasing ionto size. Page 3 of 6

Answer 1

homebt Maling pent ColorPtomt e Deni c. L02S 22 0 Pale yellouu 8.8 Chloaine O. oo32 [Ol Gre nish yellow 3S . Чу6 2 To e 3 Brown (26.O4 Astatine: Dent Apprax. t Colos Black Atomic we Saht: 210 2 2 2. 3 S 3 phos phosous ctty is more (İket positi ve oilation umbEn nt 3 3 P O