C. They are grouped in a column because they have similar properties.
Elements in the same group often have similar chemical and physical properties, which is why they are arranged this way in the periodic table.
t
The periodic table organizes elements into columns called “groups.” For example, copper (Cu), silver (Ag), and gold (Au), metals useful in jewelry making, are all found in group 11, and helium (He), neon (Ne), and argon (Ar), colorless nonreactive gases, are found in group 18 as shown below.
Why are elements arranged in groups in the periodic table?
A.
They are organized according to when they were discovered.
B.
They are organized in groups according to the size of their atoms.
C.
They are grouped in a column because they have similar properties.
D.
They are arranged in columns by the number of protons in their atoms.
1 answer