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andreyandreev [35.5K]
2 years ago
10

Which statement is not true about the periodic table?

Chemistry
1 answer:
Crazy boy [7]2 years ago
4 0
Answer is A
All elements on the periodic table have a different number of protons that can be represented by its atomic number
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Name the noble gas atom that has the same electron configuration as each ion in the compound rubidium oxide
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In rubidium oxide - Rb₂O , the ions are Rb⁺ and O²⁻
Rb is a group one element with one valence electron. To become stable it loses its outer electron to gain a complete outer shell.
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Once it loses its valence electron the configuration is;
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