4. Atoms and Elements
Ions (Simplified)
4. Atoms and Elements
Ions (Simplified)
00:53
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- 객관식
Give the correct number of protons, neutrons and electrons for the following isotope:.
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In which pair are the two species both isoelectronic and isotopic?
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One isotope of a metallic element has a mass number of 65 and 35 neutrons in the nucleus. The cation that this atom forms has 28 electrons. What is the symbol of the cation?
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Which of the following is the symbol for the ion with a +4 charge, 30 neutrons and 21 electrons?
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Fill in the gaps for the following table.
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