An atom is unlikely to react when it is stable. That is when it's shell is complete. Due to the completion of the shell, no other electron can combine through any form of bonding. Hope i helped.
<span>D. That they variable is staying the same.
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D.They both contain carbon, but only nucleic acids contain phosphorous.
They help bring about chemical reactions.
Answer: B
Explanation:
malignant tumours spread and cause cancers, benign tumours are non-cancerous
