Match the following items relating to the periodic table with the correct statement.
-Elements having the same principal quantum number are in this order.
A)tungsten
B)valence
C)molybdenum
D)iodine
E)barium
F)lead
G)families (groups)
H)periods

Question

Quizplus · Accepted Answer

The order of elements in the periodic table is based on their arrangement in periods, which are determined by the number of electron shells (principal quantum numbers) in the atoms of the elements. Therefore, elements having the same principal quantum number are in the same period.

Answer: G
 Elements in the periodic table are also grouped into families (also known as groups), which share similar chemical and physical properties. The elements in the same family have the same number of valence electrons, which determines their reactivity and chemical properties.

Therefore, the correct pairs are:
H - Periods
G - Families (groups)

Match the Following Items Relating to the Periodic Table with the Correct