Chemistry, 25.07.2019 08:50 Hfruit

! 1. the isotope sodium-20 has how many protons? 11 na 22.99 sodium a) 9 b) 10 c) 11 d) 12 2. the isotope sodium-20 has how many neutrons? 11 na 22.99 sodium a) 9 b) 10 c) 11 d) 12

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! 1. the isotope sodium-20 has how many protons? 11 na 22.99 sodium a) 9 b) 10 c) 11 d) 12...

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