Answer:
d) He, Ar, Kr
Explanation:
To have similar chemical properties, elements must belong to the same period on the periodic table.
As a generally periodic trend, elements within the same group, have the same chemical properties.
So, the correct answer choice will draft elements from the same group.
- He, Ar and Kr belongs to the group of elements called the noble gases.
- They are an unreactive group of elements.
- They are found in the last group on the periodic table.
- These elements do not readily combine with other elements.
