ExamPlay Light Logo
Conectare

WAEC - Chemistry (2002 - No. 18)

An element Y has the electronic configuration 1s22s22p6623p4. To what period does it belong in the periodic table?
3
4
5
6

Comentarii (0)

Autentifică-te pentru a comenta
Publicitate
BrainBehindX Inc Logo
©2026; Cu sprijinul BrainBehindX Inc