A. Graphite
B. Silicon
C. Charcoal
D. Phosphorous
Submitted by: Muhammad Ashhar khan
A. Graphite
B. Silicon
C. Charcoal
D. Phosphorous
Submitted by: Muhammad Ashhar khan
A. Phosphorous
B. Bromine
C. Chlorine
D. Helium
Submitted by: Muhammad Ashhar khan
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