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Basile [38]
4 years ago
10

Please help! Thanks!

Chemistry
2 answers:
hram777 [196]4 years ago
8 0
I don’t know really sorry
77julia77 [94]4 years ago
7 0
Laccoliths although I’m not certain tbh
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55 \; \text{e}^{-}, 55 \; \text{p}^{+}, and 74 \; \text{n}^{0}- in case cesium-129 is what you were referring to.

Cesium has atomic number 55 as seen on a modern periodic table. A cesium atom nucleus would thus contain an equal number of protons; in addition to that, a <em>neutral</em> atom of cesium would contain the same number of electrons in its electron cloud.

For a particular isotope,

\text{Mass number} = \text{Number of protons per nuclei} + \text{Number of Neutrons per nuclei}.

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