Chemical Elements Worksheet
Explore the fundamental building blocks of matter with this Grade 8 Science worksheet on Chemical Elements, covering the periodic table, atomic structure, and properties of elements.
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Chemical Elements Review
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Read each question carefully and provide the best answer based on your knowledge of chemical elements.
1. The smallest unit of an element that maintains the chemical identity of the element is called an .
2. The periodic table organizes elements by their number.
3. The three subatomic particles found in an atom are protons, neutrons, and .
4. Elements in the same on the periodic table have similar chemical properties.
5. Which of the following is NOT a characteristic of a metal?
Good conductor of heat
Malleable
Dull appearance
Lustrous
6. What is the atomic number of an element?
Number of neutrons
Number of protons
Number of electrons
Sum of protons and neutrons
7. What is the main difference between an atom and an element?
8. Explain why elements in the same group (column) of the periodic table tend to have similar chemical properties.
9. All atoms of the same element have the same number of neutrons.
True
False
10. Nonmetals are generally poor conductors of electricity.
True
False