2.6 - Valency
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Practice Questions
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What is the valency of an element with 1 valence electron?
💡 Hint: Think about the definition of valency.
If an element has 8 electrons in its outer shell, what is its valency?
💡 Hint: Consider the inert gases.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the valency of oxygen?
💡 Hint: Remember the calculation rule for valency.
Valency is determined by the number of what?
💡 Hint: Think about the outer shell of an atom.
1 more question available
Challenge Problems
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How would knowing the valency of an element help in determining its chemical formula when forming compounds?
💡 Hint: Consider how you would write the formula for water or carbon dioxide.
Predict the formula formed by combining Na (valency 1) and Cl (valency 1). Explain your reasoning.
💡 Hint: Think about how many of each type of atom are needed for balance.
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