QQuestionChemistry
QuestionChemistry
Helium (He) has an atomic number of 2. Why is it chemically stable?
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Answer
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Step 1I'll solve this problem step by step, explaining the chemical stability of helium:
Step 2: Understand Atomic Structure
Helium is the second element in the periodic table with an atomic number of 2, which means it has 2 protons in its nucleus and 2 electrons in its electron shells.
Final Answer
Helium is chemically stable because its 1s^{2} electron configuration represents a completely filled electron shell, making it energetically unfavorable for the atom to participate in chemical reactions.
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