Alpha rays emitted from a radioactive substance are ....

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Question Alpha rays emitted from a radioactive substance are 
(A) Uncharged particles having the mass equal to electron
(B) Uncharged particles having the mass equal to proton
(C) Ionised hydrogen nuclei
(D) Doubly ionized helium atom📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live



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