Podcast
Questions and Answers
What is the main property that distinguishes metals from non-metals?
What is the main property that distinguishes metals from non-metals?
- Conductivity of heat and electricity (correct)
- Solidity at room temperature
- Lustrous appearance
- Ductility and malleability
Which of the following is NOT a characteristic of metalloids?
Which of the following is NOT a characteristic of metalloids?
- Behave as both metals and non-metals
- Have chemical properties that are always non-metallic (correct)
- Have physical properties that tend to be metallic
- Solid at room temperature
What is the relationship between the atomic number and the number of protons in an atom?
What is the relationship between the atomic number and the number of protons in an atom?
- The atomic number is equal to the sum of protons and neutrons
- The atomic number is equal to the number of electrons
- The atomic number is equal to the number of protons (correct)
- The atomic number is equal to the number of neutrons
Which of the following groups on the periodic table are considered alkali metals?
Which of the following groups on the periodic table are considered alkali metals?
What is the key difference between periods and groups on the periodic table?
What is the key difference between periods and groups on the periodic table?
Which of the following is NOT a characteristic of non-metals?
Which of the following is NOT a characteristic of non-metals?
Flashcards
What's the key difference between metals and non-metals?
What's the key difference between metals and non-metals?
Metals excel at conducting heat and electricity, while non-metals are poor conductors.
Metalloids aren't always non-metallic?
Metalloids aren't always non-metallic?
Metalloids have a mix of metal and non-metal properties. Their chemical behavior is often unpredictable, changing depending on the situation.
What does the atomic number tell us?
What does the atomic number tell us?
The atomic number represents the number of protons in an atom's nucleus. It's like its unique identifier.
What are alkali metals?
What are alkali metals?
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Explain periods and groups on the periodic table.
Explain periods and groups on the periodic table.
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Why are non-metals poor conductors?
Why are non-metals poor conductors?
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