Asked by Michael
Why is an alpha particle written as a helium (He) nucleus?
A. An alpha particle has two protons and two neutrons; it is essentially the nucleus of a helium atom.
B. Helium is a common element that is often present in small forms; the alpha particle was misidentified in early scientific studies as helium.
C. An alpha particle is a stable, non-reactive particle, like the noble gas helium.
D. An alpha particle has two electrons; it is essentially an atom of helium.
I think it is A
A. An alpha particle has two protons and two neutrons; it is essentially the nucleus of a helium atom.
B. Helium is a common element that is often present in small forms; the alpha particle was misidentified in early scientific studies as helium.
C. An alpha particle is a stable, non-reactive particle, like the noble gas helium.
D. An alpha particle has two electrons; it is essentially an atom of helium.
I think it is A
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