Boron has a smaller radius and the protons in carbon exert a greater pull
Metals are strong, high density, good conductors of heat and electricity, and are also malleable and ductile. While non metals are brittle, dull looking, are poor conductors of heat and electricity, and are overall weaker.
Only one parent is needed for reproduction.
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“I don't feed the birds because they need me; I feed the birds because I need them.” “Feeding birds means feeding yourself! Birds are part of nature and feeding nature is nothing but feeding yourself!”