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Wittaler [7]
3 years ago
11

173Lu has how many protons and neutrons

Chemistry
1 answer:
zheka24 [161]3 years ago
3 0

Answer:

71 protons

102 neutrons

Explanation:

Step 1: Find atomic number of Lu

Lu - Element number 71

So we know that Lu has 71 protons.

Step 2: Identify Lu - 173

173 is the atomic mass number, meaning the combined number of protons AND neutrons.

173 - 71 = 102 neutrons

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<em></em>

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mass of the star m =  2.0 x 10^36 kg

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