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Daniel [21]
3 years ago
13

And active alkaline earth Metal with 56 protons

Chemistry
1 answer:
snow_tiger [21]3 years ago
4 0
Protons can't change in stable elements so its means that is Barium
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I think there are 3

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Answer is given below:

Explanation:

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5 0
3 years ago
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7 0
3 years ago
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