According to the nuclear reaction 4Be +2He^4 gives 6C^12 +0n^1 , mass number of (Be ) atom is (a) 4 (b) 9 (c)) 7 (d) 6 According to the nuclear reaction 4Be +2He^4 gives 6C^12 +0n^1 mass number of (Be ) atom is (a) 4 (b) 9 (c)) 7 (d) 6 February 13, 2021 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related