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2. Atoms & Elements

Ions

2. Atoms & Elements

Ions

Multiple Choice
When sulfur forms an ion, does it become a cation or an anion?
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Multiple Choice
Which process leads an atom to become an anion?
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Multiple Choice
Which of the following has 10 electrons?
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Open Question
A Se ion has a mass number of 77 and a charge of −2
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Multiple Choice
Which of the following represents the formula of the ion formed when potassium achieves a noble-gas electron configuration?
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Multiple Choice
Which of the following ions has the greatest charge density?
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Multiple Choice
Which of the following is an anion?
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Multiple Choice
What type of ion has lost an electron and therefore carries a positive charge?
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Multiple Choice
What happens to an atom when it loses an electron and becomes a cation?
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Multiple Choice
Which statement best describes the difference between a neutral element and an ion?
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Multiple Choice
Which of the following is the most stable monatomic ion formed from caesium?
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Multiple Choice
What is the charge of the metal ion in the complex ion Fe(NH_3)_2Br_4^{2-}? (Omit the + sign in your answer.)
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Multiple Choice
In the compound aluminum hydroxide, Al(OH)_3, how many hydroxide ions are bonded to each aluminum ion?
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Multiple Choice
How many total electrons are present in a Sr^{2+} ion?
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Open Question
When an atom is charged, it is called an ion. How many electrons are in O^2-?
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