Hydrogen
Group 1A
Group 2A
Group 3A
Group 4A
Group 5A
Group 6A
Group 7A
Group 8A
Consults, E. (2022). Rep Elements in Periodic Table. Afribary. Retrieved from https://afribary.com/works/rep-elements-in-periodic-table
Consults, Education "Rep Elements in Periodic Table" Afribary. Afribary, 06 Jun. 2022, https://afribary.com/works/rep-elements-in-periodic-table. Accessed 20 Jan. 2026.
Consults, Education . "Rep Elements in Periodic Table". Afribary, Afribary, 06 Jun. 2022. Web. 20 Jan. 2026. < https://afribary.com/works/rep-elements-in-periodic-table >.
Consults, Education . "Rep Elements in Periodic Table" Afribary (2022). Accessed January 20, 2026. https://afribary.com/works/rep-elements-in-periodic-table