Chemistry
Chemistry past questions and answers from WAEC and JAMB
Page 28
a.
Quality of electrons in the valence shell
b.
Filling the orbitals with lower energy first
c.
The filling of degenerated orbitals
d.
Quantum numbers of electrons
a.
Alkenes
b.
Alkanols
c.
Alkanals
d.
Alkanes
a.
Al and Mg
b.
Zn and Fe
c.
Zn and Pb
d.
Pb and H
a.
Bulk chemicals
b.
Fine chemicals
c.
Heavy chemicals
d.
Light chemicals