Answer:A
Explanation:Actually it’s no A i actually don’t know it, I’m just doing this because I have to do it.
Similar elements with similar properties were in the same groups and periods for instance lithium(Li) and sodium(Na) are alkaline metals and so belong to the same group (that is group 1).Also Hydrogen(H) and Helium(He) both have only one shell or energy level and so belong to the same period.
Answer:
hii there
The correct answer is True
Explanation:
Hope it helps
have a nice day :)
