Ions and Isotopes Worksheet
Explore the fundamental concepts of ions and isotopes, including atomic structure, charge, and mass number, with this comprehensive Grade 8 science worksheet.
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Standards
Ions and Isotopes
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Date:
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Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. What is an ion?
An atom with a different number of neutrons
An atom with a net electrical charge
An atom with more protons than electrons
An atom that has lost all its electrons
2. What makes an atom an isotope of an element?
A different number of protons
A different number of electrons
A different number of neutrons
A different atomic number
3. An atom that gains electrons becomes a negatively charged ion called an .
4. The sum of protons and neutrons in an atom is called its .
5. Atoms of the same element that have different numbers of neutrons are called .
6. A cation is a positively charged ion.
True
False
7. All atoms of a given element have the same number of neutrons.
True
False
8. Explain the difference between an ion and an isotope.
9. If an atom has 11 protons, 12 neutrons, and 10 electrons, what is its atomic number, mass number, and charge? Is it an ion or a neutral atom?
10. Label the parts of the atom shown in the diagram. Identify which particles are involved in forming an ion and which are involved in forming an isotope.
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