ExamPlay Light Logo
Kirjaudu sisään

WAEC - Chemistry (2009 - No. 9)

Which of the following electronic configurations correctly represents an element in period 3 of the periodic table?
1s2 2s2 2p2
1s2 2s2 2p6
1s2 2s2 2p6 3s2 3p4
1s2 2s2 2p6 3s2 3p6 4s1

Kommentit (0)

Kirjaudu sisään kommentoidaksesi
Mainos
BrainBehindX Inc Logo
©2026; Powered By BrainBehindX Inc