6. Below is a Patterson map composed of identical atoms in a plane. Each contour represents the intensity of each peak. (a) how many atoms are present? (b) draw the structure of the collection of atoms in one quadrant. Use arrows to indicate each interatomic vector. (hint: CHEM 467 Winter 2016 Final Name: not all atoms have the same electron density) (c) how many contours should the origin have, and what are they due to? о Suppose that this collection of atoms were symmetrically related to similar sets of atoms via a four-fold rotational axis. Draw the arrangements of the atoms and draw the Patterson map for this complete arrangement. Calculate the number of cross peaks.

(1) What is the valence electron configuration for the arsenic atom? (2) What is the valence electron configuration for the fluorine atom?

Select the ions or atoms from the following sets that are isoelectronic with each other. (a) (b) (c) Fe²+ Cu³+ Ni2+ AP+ p.J. Na+ DRb (d) Br Cs' 82. mut Na

choose three . What are the characteristerses of a metal like element? (a) they try to get additional electrons (b) they are melleable. (c) they are lightly to give away or share electrons. (d) they are good conductors of electricity

Answer the following questions for the element Nh (Z = 113). Where prompted, type answers in the provided blanks. Write out all your work (A) The name of the element = type your answer... (B) What is the full electron configuration for an atom of Nh? (C) What is the electron configuration for Nh using the noble gas notation? (D) The number of valence electrons in an atom of Nh= type your answer... (E) Give the full set of quantum numbers for each of the valence electrons of Nh. Use the format: (n, I, m₁, mç)

(a) Identify the number of electrons in the ground-state outer shell of atomic oxygen (atomic number 8).(b) How many electrons are in the ground-state outer shell of fluorine?

Please don't provide handwritten solution.....   How many electrons would an atom of chlorine (atomic number = 17) have in its valence (outermost) energy shell? 02 07 08 O 17

What are ionization energy for atoms : (a) Sr (b) P (c) Rb

Give the shell electron configuration for the following. (For example, the shell electron configuration of lithium is written 2,1.) (a) argon (b) magnesium

Q2. This question is about the periodicity of the Period 3 elements. (a) State and explain the general trend in first ionisation energy across Period 3. Give one example of an element which deviates from the general trend in first (b) ionisation energy across Period 3. Explain why this deviation occurs. Page 3 of 12 (c) The table shows successive ionisation energies of an element Y in Period 3. lonisation number 1 2 3 4 5 6 7 8 lonisation energy kJ mol- 1000 2260 3390 4540 6990 8490 27 100 31 700 Identify element Y Explain your answer using data from the table. (d) Identify the Period 3 element that has the highest melting point. Explain your answer by reference to structure and bonding.