2.4 - Atoms, Molecules, and Ions (Basic Introduction)
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Practice Questions
Test your understanding with targeted questions
What is the smallest unit of an element?
💡 Hint: Think about what makes up all matter.
What happens to an atom when it gains an electron?
💡 Hint: Remember the balance of protons and electrons.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is an atom?
💡 Hint: Remember what defines matter.
Na⁺ is an example of what type of ion?
💡 Hint: Consider if this ion has gained or lost electrons.
1 more question available
Challenge Problems
Push your limits with advanced challenges
If you have an unknown element that is standard atomic number 15, determine its charge when it forms a cation after losing 3 electrons. What will be its chemical symbol?
💡 Hint: Think about the periodic table and how charges are calculated.
Analyze the following compound, CO₂. Describe the types of bonds formed between the atoms and explain the result of this bonding.
💡 Hint: Consider how many electrons are shared and the shape it produces.
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