Concept explainers
Interpretation:
For the given Lewis symbol of the anion, the group of the element is to be determined.
Concept introduction:
A Lewis dot symbol is composed of an element’s symbol surrounded by dots.
In Lewis dot symbol, dots represent the valence electrons.
Dots are placed above and below as well as to the left and right of symbol.
Number of dots is important in Lewis dot symbol but not the order in which the dots are placed around the symbol.
In writing symbol pairing is not done until absolutely necessary.
For metals, the number of dots represents the number of electrons that are lost when the atom forms a cation.
For second period non-metals, the number of unpaired dots is the number of bonds the atom can form.
Atomic ions can also be represented by dot symbols, by simply adding (for anions) and subtracting (for cations) the appropriate number of dots from Lewis dot symbol.
Want to see the full answer?
Check out a sample textbook solutionChapter 8 Solutions
EBK CHEMISTRY
- 39. How many grams are in 2.3 x 104 formula units of KNO,? (A) 38.6 grams (B) 102.3 grams (C) 140 gramsS (D) 386 grams 40. Which statement describes the general trends in electronegativity and first ionization energy as the elements in Period 3 are considered in order from Na to Cl? (A) Electronegativity increases, and first ionization energy decreases (B) Electronegativity decreases, and first ionization energy decreases (C) Electronegativity and first ionization energy both increase (D) Electronegativity and first ionization energy both decrease 2020 Illuminate Education TM, Inc. 9.arrow_forward3. By means of Lewis structures, represent bonding between the following pairs of elements (Your structures should show whether the bonding is essentially ionic or covalent): (a) Cs and Br (b) H and Sb (c) B and Cl (d) Cs and Cl (e) Li and 0 (f) Cl and Iarrow_forward39. How many grams are in 2.3 x 1024 formula units of KNO3? (A) 38.6 grams (B) 102.3 grams (C) 140 grams (D) 386 grams 40. Which statement describes the general trends in electronegativity and first ionization energy as the elements in Period 3 are considered in order from Na to Cl? (A) Electronegativity increases, and first ionization energy decreases (B) Electronegativity decreases, and first ionization energy decreases (C) Electronegativity and first ionization energy both increase (D) Electronegativity and first ionization energy both decreasearrow_forward
- 8) What is the Lewis symbol for each of the following atoms or ions: a) K b) As c) Sn²+ d) N³-arrow_forwardMark each statement as True (T) or False (F). i) CO belongs to the binary ionic compounds. ii) Reaction between N2 and H2 gives NH3 and H2O. iii) Modern periodic table is based on atomic weight (mass number). iv) In a group, elements have similar chemical properties. v) Size of an atom is larger as compared to the size of the nucleus. vi) Alpha rays are deflected back due to the presence of electrons in an atomarrow_forward3. Use Lewis symbols to diagram the reactions between (a) Ca and Br, (b) Al and O, and (c) K and S.arrow_forward
- Which compound below has the most ionic character? (a) Li-F (b) Na-CI (с) К-Br (d) Rb-I Which compound below has the most covalent character? (a) Li-F (b) Na-CI (с) К-Br (d) Rb-Iarrow_forwardative element in the group K, Mg, Al and In; (d) the element in the group Na, Be, Si, Ar, that is most likely to form an ionic compound with Br. 8.41 Which of the following bonds are polar? (a) C-O, (b) Sl–F, (c) N-CI, (d) C-Cl. Which is the more electro- negative atom in each polar bond? 8.42. Arrange the bonds in each of the following sets in or-arrow_forwardCan you please solve all of the sub questions and show all of the workarrow_forward
- (a) The 03 molecule has a central oxygen atom bonded to two outer oxygen atoms that are another. In the box below, draw the Lewis electron-dot diagram of the 03 molecule. Include all valid resonance structures. 0 - 0 = 0 (b) Based on the diagram you drew in part (a), what is the shape of the ozone molecule? and trigonal Bent Ozone decomposes according to the reaction represented below. 2 03(g) → 3 0₂(8) (c) The bond enthalpy of the oxygen-oxygen bond in O₂ is 498 kJ/mol. Based on the enthalpy of the reaction represented above, what is the average bond enthalpy, in kJ/mol, of an oxygen-oxygen bond in 03 ? Ozone can oxidize HSO3(aq), as represented by the equation below. [0] 1.0 x 10-5. <-> 00: HSO3(aq) + O3(aq) → HSO4 (aq) + O₂(8) A solution is prepared in which the initial concentration of HSO₂ (aq) (6.4 × 10+ M) is much larger than that of O3(aq) (1.0 × 10-5 M). The concentration of O3(aq) is monitored as the reaction proceeds, and the data are plotted in the graph below. 8.0 x…arrow_forwardThank you in advance. I need answer herearrow_forwardCharge? of X in the following compound X(SO4)2arrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning