Practice Atomic Number (z) And Mass Number (a): Unique Identifiers For Atoms (3.2.2)
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Atomic Number (Z) and Mass Number (A): Unique Identifiers for Atoms

Practice - Atomic Number (Z) and Mass Number (A): Unique Identifiers for Atoms

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does the atomic number (Z) represent?

💡 Hint: What uniquely identifies an element?

Question 2 Easy

How do you calculate the mass number (A)?

💡 Hint: Think about what two subatomic particles contribute to mass.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the atomic number of Carbon?

6
12
14

💡 Hint: Think about how we define an element.

Question 2

True or False: Isotopes of an element have the same atomic number.

True
False

💡 Hint: Recall what defines an element.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

If an atom has an atomic number of 30 and a mass number of 65, how many protons and neutrons does it have?

💡 Hint: Remember to subtract the atomic number from the mass number.

Challenge 2 Hard

Discuss how isotopes of an element can have similar chemical properties but different physical properties.

💡 Hint: Reflect on what determines chemical vs. physical behavior.

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Reference links

Supplementary resources to enhance your learning experience.