Answer:
Column 1. They have one valence electron
Column 2. They have 2 valence electrons
Transition metal column. Variable oxidation states
Column 3–7. Valence electron ranges from 3 to 7 electrons
Column 8. Completely filled i.e no valence electron
Explanation:
Answer:will drop 4°c
dna or diabeties can be separated
This is late but for anyone else who needs it...It's D. Far left
A} Kinetic chemical energy
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