Isotopes: Exploring Atomic Variations
A Grade 10 Science worksheet focusing on isotopes, their definition, properties, and applications.
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Isotopes: Exploring Atomic Variations
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. What is the primary difference between two isotopes of the same element?
Number of protons
Number of electrons
Number of neutrons
Atomic number
2. Which of the following statements about isotopes is true?
They have different chemical properties.
They have the same mass number.
They have the same number of protons.
They are always radioactive.
1. Isotopes of an element have the same number of protons but different numbers of .
2. The sum of protons and neutrons in an atom is called the number.
3. Carbon-14 is a radioactive isotope used in dating.
1. All isotopes of an element have the same atomic mass.
True
False
2. Radioactive isotopes decay over time, emitting radiation.
True
False
1. Explain why isotopes of the same element have similar chemical properties but different physical properties.
2. Describe one practical application of a radioactive isotope in medicine or industry.
Observe the diagram below, which represents a simplified atomic structure. Answer the questions that follow.
1. Based on the diagram, how many protons are in the nucleus?
2. How many neutrons are in the nucleus?
3. If this atom had one more neutron, what would it be called in relation to the original atom?
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