What is the difference between a period and a group in the periodic table

Groups and periods are just ways to divide and categorise elements in the periodic table according to their properties- be it physical or chemical. A period is the horizontal line and all the elements in one period have the same number of energy levels. A group is the vertical line and all the elements in a group have the same number of electrons in the outer most energy level- hence why they have similar chemical properties as the electrons on the outer shell dictate reactability.

Answered by Zoya K. Chemistry tutor

17490 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

A student carries out an experiment to determine the melting point of a waxy solid. She heats a sample until it melts, then measures and records its temperature as it cools down. Explain how the student could use her results to decide whether the waxy


What happens to the reactivity going down group 7?


What is the difference between an endothermic and exothermic reaction?


What is ionic bonding?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy