Questions and Answers
What element does the Lithium Atom represent?
Lithium
What element does the Sodium Atom represent?
Sodium
Identify the atom and what group it is in on the periodic table if the atom is Oxygen.
Oxygen, Group 16
What period is the Sodium Atom in?
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What is the atomic number of Ruthenium?
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What is the mass number of Rhodium?
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What group on the periodic table are the Halogens?
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What group on the periodic table are the Noble Gases?
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What group on the periodic table are the Lanthanides?
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What group on the periodic table are the Actinides?
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What group on the periodic table are the Alkali Metals?
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What group on the periodic table are the Alkaline-Earth Metals?
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What molecule is this a picture of? How many atoms of hydrogen are in each Water Molecule?
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Study Notes
Atomic Structure and Groups in the Periodic Table
- Lithium Atom: Essential element in psychology and medicine; known for its role in treating bipolar disorder.
- Sodium Atom: Key metal for biological processes; crucial for nerve function and fluid balance in the body.
- Oxygen Atom: Found in Group 8 of the periodic table; necessary for respiration and water formation.
- Period 3: Contains elements like sodium, magnesium, and silicon; essential for understanding periodic trends and element properties.
Atomic Numbers and Mass Numbers
- Ruthenium: Atomic number is 44; commonly used in electrical contacts and applications requiring high-temperature resistance.
- Rhodium: Mass number is 103; valuable for catalytic converters in vehicles due to its ability to reduce harmful emissions.
Groups of Elements in the Periodic Table
- Halogens: Group includes fluorine, chlorine, bromine, iodine, known for reactivity and forming salts with metals.
- Noble Gases: Group comprises helium, neon, argon, and others; inert gases with full outer electron shells, used in lighting and refrigeration.
- Lanthanides: Includes elements like lanthanum and cerium; known for their role in producing strong magnets and catalysts.
- Actinides: Range includes actinium to lawrencium; some are radioactive and used in nuclear applications.
- Alkali Metals: Group 1 elements such as lithium and sodium; highly reactive, particularly with water, often stored in oil to prevent reactions.
- Alkaline-Earth Metals: Group 2 elements including magnesium and calcium; less reactive than alkali metals, important in various minerals and biological functions.
Molecular Composition
- Water Molecule: Composed of two hydrogen atoms and one oxygen atom; vital for life, acts as a solvent and participates in biochemical reactions.
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Description
Test your knowledge of atoms and their classification with these flashcards. Each card presents a different element, asking you to identify it and its group in the periodic table. Challenge yourself and see how many spaces you can move forward!
