Practice: Which of the following statements is false?
Periodic Trends are patterns present in the periodic table based on an element's size and electron distribution.
Concept #1: Periodic Trend: Cumulative
Example #1: Elements with ____ first ionization energies and more _______ electron affinities generally form cations.
Practice: For main-group elements, the atomic radius increases going down a group because:
Practice: Which of the following statements is false?
a) The electron affinity of phosphorus is less exothermic than those of both silicon and sulfur.
b) The second ionization energy of oxygen is less than the first ionization of fluorine.
c) As the principal quantum number of an atom increases the effective nuclear charge will increase.
d) Cations are smaller than their parent atoms.
e) The second electron affinity of an atom will be more exothermic than the first electron affinity.
Practice: Which of the following statements is true?
