(a)
Interpretation:
To arrange the given set of species in order of their decreasing radius.
Concept introduction:
The Modern Periodic law states that the physical and chemical properties of the elements are a periodic function of their
(b)
Interpretation:
To arrange the given set of species in order of their decreasing radius.
Concept introduction:
The Modern Periodic law states that the physical and chemical properties of the elements are a periodic function of their atomic numbers. This means that changes in the chemical properties of various elements present in the modern periodic table are due to their atomic numbers. Atomic number of an element gives the total number or electrons or protons present in that atom. The main cause of periodicity is the repetition of similar outer electronic configuration after regular intervals.
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Chapter 6 Solutions
Chemistry: Principles and Reactions
- Does the information on alkali metals in Table 2-8 of the text confirm the general periodic trends in ionization energy and atomic radius? Explain.arrow_forwardFor each of the following pairs of atoms or ions, state which you expect to have the larger radius. (a) Na or K (b) Cs or Cs+ (c) Rb+ or Kr (d) K or Ca (e) Cl or Ararrow_forwardFor each of the following pairs of atoms or ions, state which you expect to have the larger radius. (a) Sm or Sm3+ (b) Mg or Ca (c) I orXe (d) Ge or As (e) Sr+ or Rbarrow_forward
- 5. The atoms and ions Ne, N³-, F, Mg2+, and Si4+ are part of an isoelectronic series. (a) Which of these will have the smallest effective nuclear charge acting on the outermost electron? (b) Which one possess the greatest effective nuclear charge? (c) Which ion will be the largest in size? Explain why.arrow_forwardArrange in order of increasing ionization energy. (a) the Group 1A elements H, Li, and Cs (b) the Period 4 elements As, K, & Searrow_forwardArrange the following sets of ions in order of decreasıng 1onic radii. (a) Br, Cl", 0² , s²- (b) Cs*, Frt, Rb+arrow_forward
- Using only their location in the periodic table, rank the atoms in each set by decreasing atomic size. Explain your answers. (a) Mg, Be, Ba (b) Se, Br, Cl (c) Ca, Se, Gaarrow_forwardWhich of the following statements is incorrect? (a) The second ionization energy of sulphur is greater than that of chlorine (b) The third ionization energy of phosphorus is greater than that of aluminium (c) The first ionization energy of aluminium is approximately the same as that of gallium (d) The second ionization energy of boron is greater than that of carbon a b O darrow_forwardRank the elements in each of the following sets in order of increasing atomic radius. (Use the appropriate <, =, or > symbol to separate substances in the list.) (a) Na, Li, H, Rb (b) S, Ar, Si, Alarrow_forward
- 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 Naarrow_forward15. (a) b) Identify the element that is described by the following information. Refer to a periodic table if necessary. It is a group 14 (III A) metalloid in the 3rd period. It is a group 15 (VA) metalloid in the 5th period. It is the other metalloid in group 15 (VA). d) It is a halogen that exists in the liquid state at room temperature. 16. What is the relationship between electron arrangement and the organization of elements in the periodic table?arrow_forwardAn element has the following electronic configuration: [Kr]4d105s25p2(a) What period does it belong to?(b) What is its group number? (Use group numbers from 1 to 18)(c) What kind of element is it? (Main group metal, transition metal, metalloid, nonmetal?)(d) How many unpaired electrons are there in an atom of this element?arrow_forward
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