Chemical Elements Basics
Explore the fundamental concepts of chemical elements, their properties, and how they are organized on the periodic table.
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Chemical Elements Basics
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Read each question carefully and answer to the best of your ability. Good luck!
1. What is the smallest unit of an element that still has the properties of that element?
Molecule
Compound
Atom
Mixture
2. Which of these is NOT an element?
Oxygen
Water
Iron
Gold
3. The chart that organizes all known elements is called the .
4. The symbol for the element Hydrogen is .
5. Elements are made up of only one type of .
6. Look at the image below. What are the three main parts of an atom?
7. All elements are naturally found on Earth.
True
False
8. Each element has a unique chemical symbol.
True
False
Use the words below to complete the sentences.
9. The center of an atom is called the .
10. Positively charged particles in an atom are called .
11. Negatively charged particles that orbit the nucleus are called .
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