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Why is helium's atomic number 2?

User Yassir S
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2 Answers

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Answer:

Helium is a chemical element. Its official symbol is He, and its atomic number is 2, which means it has two protons in its nucleus.

User Pete Lunenfeld
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Answer:

Because it has 2 protons

Step-by-step explanation:

User Hezy Ziv
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