10. Periodic Properties of the Elements
The Electron Configuration: Quantum Numbers
1PRACTICE PROBLEM
Which of the following statement explains why the number of elements in successive periods of the periodic table increases?
A. The number of electrons decreases from one period to the next which accounts for the number of elements increasing in successive periods of the periodic table.
B. The principal quantum number (n) increases by 1 from one period to the next which accounts for the number of elements increasing in successive periods of the periodic table.
C. The periodic table is arranged for convenience and does not necessarily show any pattern.
Which of the following statement explains why the number of elements in successive periods of the periodic table increases?
A. The number of electrons decreases from one period to the next which accounts for the number of elements increasing in successive periods of the periodic table.
B. The principal quantum number (n) increases by 1 from one period to the next which accounts for the number of elements increasing in successive periods of the periodic table.
C. The periodic table is arranged for convenience and does not necessarily show any pattern.