ExamPlay Light Logo
Нэвтрэх

WAEC - Chemistry (1999 - No. 2)

What is the electronic configuration of an element represented as 199X?
1s 22s2 2p 5
1s22s23s23p3
1s2 2s2 2p 33s2
1s 22s22p 63s23p64s 1

Смхиман (0)

Сэтгэгдэл бичихийн тулд нэвтэрнэ үү
Сурталчилгаа
BrainBehindX Inc Logo
©2026; Powered by BrainBehindX Inc