Its All about Pj Problem Strings (SiPjAjk) - 7 Spaces Of Interest (Si) and their associated Basic Sequences; 7 Pj Problems of Interest (PPI) and their Alleles (Ajk)
A substance X is a silvery white, lustrous metal. It melts at 649oC and boils at 1090oC. Its density at 20oC is 1.738g/cm3. X burns in air, producing an intense white light. It reacts with chlorine to give a brittle white solid. X is a good conductor of electricity and can be pounded into thin sheets or drawn into wires.
Summarize this description of X with strings and identify X.
This is a single matter static space (ignoring quantum environment) so Space of Interest is S2. Pj Problem of Interest is Identity (P2). Alleles: A21 (physical properties); A22 (chemical properties).
Therefore strings of interest:
S2P2A21: silvery white; lustrous; melting point=649oC; boiling point=1090oC; density at 20oC = 1.738g/cm3; poundedinto sheets; drawn into wire; good conductor.
S2P2A22: burns in air; reacts with chlorine (Cl2).
X is magnesium.