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nevsk [136]
3 years ago
11

A prostar has a high enough ________ to become a star

Chemistry
2 answers:
avanturin [10]3 years ago
6 0
The answer to your question is B) mass
   A prostar has a high enough MASS to become a star.
                                            Hope this helps, love to help:).
BigorU [14]3 years ago
5 0
The correct answer is A. Mass. Hope I helped! :)
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An isoelectronic series is where all of the ions listed have the same number of electrons in their atoms. When an atom has net charge of zero or neutral, it has equal number of protons and electrons. Hence, it means that the atomic number = no. of protons = no. of electrons. If these atoms become ions, they gain a net charge of + or -. Positive ions are cations. This means that they readily GIVE UP electrons, whereas negative ions (anions) readily ACCEPT electrons. So, to know which of these are isoelectronic, let's establish first the number of electron in a neutral atom from the periodic table:

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D. Li=3 electrons
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