3.1 - Atomic Number (Z)
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Practice Questions
Test your understanding with targeted questions
What is the atomic number of oxygen?
💡 Hint: Look at the periodic table.
What is the mass number of nitrogen with 7 protons and 7 neutrons?
💡 Hint: Add protons and neutrons together.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the atomic number represent?
💡 Hint: Remember that Z stands for protons.
True or False: Isotopes have the same number of protons but different numbers of electrons.
💡 Hint: Focus on what isotopes represent.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Determine the identity of an unknown element with an atomic number of 26. Explain its position in the periodic table.
💡 Hint: Look it up in the periodic table.
If an element has an atomic number of 15 and a mass number of 31, how many neutrons does it have? Discuss its possible isotopes.
💡 Hint: Subtract the atomic number from the mass number to find neutrons.
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