November 12, 2020
Go over answers to Periodicity Packet
organization of periodic table (increasing atomic number)
trends in size of atom
as you move down a group (atoms get larger due to greater shielding effect)
as you move across a period (atoms get SMALLER due to increased coulombic attraction)
charge and distance
Introductory Chemistry Concepts and Connections 4th
Edition by Corwin
6.1 CLASSIFICATION OF ELEMENT: (pg 137-139)
Objective: To state the original periodic law
proposed by Mendeleev.
6.2 THE PERIODIC LAW CONCEPT: (pg 139-140)
Objective: To explain the modern periodic law
concept proposed by Moseley
6.3 GROUPS AND PERIODS OF ELEMENTS: (pg 140-143)
Objective: To apply the following terms to the
period table of elements.
(a) groups (families) and periods (series)
(b) representative elements and transition elements
(c) metals, semimetals, and nonmetals
(d) alkali metals, alkaline earth metals, halogens, and noble gases
(e) lanthanide series and actinide series
(f) rare earth elements and transuranium elements
Objective: To designate a group of elements in the periodic table
using IUPAC convention (1-18).
6.4 PERIODIC TRENDS: (pg 143-145)
Objective: To state the trend in atomic size
within a group or period of elements.
Objective: To state the trend in metallic character within a
group or period.
6.9 IONIZATION ENERGY: (pg 152-153)
Objective: To state the general trends of
ionization energy in the periodic table.
Objective: To state the group with the highest and lowest