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telo118 [61]
4 years ago
14

An element has atomic number 10 and an atomic mass of 20. How many neutrons are in the atom of this electron

Chemistry
2 answers:
ExtremeBDS [4]4 years ago
7 0

Answer:

n = A - Z

n =  20 - 10

n = 10

ArbitrLikvidat [17]4 years ago
3 0

Answer:

10 Neutrons

Explanation:

Atomic Mass = # of Protons + # of Neutrons

Atomic Number = # of Protons in nucleus and what element

20 = 10 protons + x # of neutrons

10 = x # of protons

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