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RUDIKE [14]
3 years ago
15

Help me!!!! Please!!!!!!!!

Chemistry
1 answer:
irina1246 [14]3 years ago
5 0

Have a wonderful day :) thanks for the points

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A certain isotope has 53 protons 78 neutrons and 53 electrons. What is its atomic number? What is the mass number of this atom?
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Answer:

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Explanation:

atomic no. = no. of protons

= 53 proton

mass = no. of protons + no. of

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AnnyKZ [126]

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