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2. Atoms & Elements

Ions

2. Atoms & Elements

Ions

Multiple Choice
Give the correct number of protons, neutrons and electrons for the following isotope:.
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Open Question
31p3- protons neutrons electrons
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Open Question
When electrons are removed from the outermost shell of a calcium atom, the atom becomes?
Open Question
C+ protons and electrons
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Open Question
Which choice(s) contain(s) an isoelectronic pair in the ground state?
Multiple Choice
What is a hydrogen ion?
Multiple Choice
Which of the following ions are negatively charged?
Multiple Choice
When sodium forms its common ion, Na^+, how many protons and electrons does it have?
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Multiple Choice
When aluminum forms an ion, how many electrons does it gain or lose?
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Multiple Choice
Which of the following ions has the same electron configuration as a noble gas?
Multiple Choice
Is a charge indicated on neutral atoms? If yes, which of the following statements is correct?
Multiple Choice
Which two ions are most abundant in ocean water?
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Multiple Choice
If an atom loses two electrons, what will be its resulting charge?
Multiple Choice
Which of the following best describes how a negative ion (anion) is formed?
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Multiple Choice
What is the charge of a magnesium ion (Mg^{2+})?
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