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jeka94
3 years ago
8

How many electrons are in an element with an atomic number of 20 and an atomic mass of 40? options: ANSWER FOR BRAINLIES

Physics
2 answers:
NeX [460]3 years ago
6 0
Answer: B
Step by step explanation:

subtract mass number and atomic number

40-20= 20


mafiozo [28]3 years ago
4 0

Answer:

B

Explanation:

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Explanation:

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