Question

12. In the modern periodic table, which of the following describes the elements with similar

properties?
A. They have similar atomic masses.
B. They are located in the same group.
C. They are located in the same period.
D. They have the same number of protons.

Answer 1

B. same group I believe

Answer 2

The answer the is b, they are located in the same group. Because elements in the same group have the same number of valence electrons which also means that they share similar properties.