the number of electrons and neutrons of an
The number of electrons and neutrons of an element is 18 and 20 respectively. Its mass number is:
(1) 17
(2) 37
(3)2
(4)38
Ans: 17
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the number of electrons in 4019 k -1 is1 19 2 20 318 440ans
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the number of electrons and neutrons of an element is 18 and 20 respectively its mass number is1 17 2
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number of protons neutrons and electrons in the element 23189 y is1 89 231 89 2 89 89 242 3 89 142 89 4
larry spends 34 hour twice a day walking and playing with his dog he also spends 16 hour twice a day feeding his dog how much time does larry spend
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