Podcast
Questions and Answers
Sodium and Magnesium are noble gases.
Sodium and Magnesium are noble gases.
False
Sodium has a higher atomic number than Magnesium.
Sodium has a higher atomic number than Magnesium.
False
Sodium and Magnesium belong to period 4 of the periodic table.
Sodium and Magnesium belong to period 4 of the periodic table.
False
The atomic symbol for Sodium is Mg.
The atomic symbol for Sodium is Mg.
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Sodium has a lower atomic mass than Magnesium.
Sodium has a lower atomic mass than Magnesium.
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What is the total distance covered by the athlete from the starting point to the point 90m up the hill and back to the starting point?
What is the total distance covered by the athlete from the starting point to the point 90m up the hill and back to the starting point?
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What is the ratio of the athlete's speed when running up the hill to their speed when running back down the hill?
What is the ratio of the athlete's speed when running up the hill to their speed when running back down the hill?
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How long does it take the athlete to run the 90m up the hill?
How long does it take the athlete to run the 90m up the hill?
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What is the total time taken by the athlete to cover the entire distance?
What is the total time taken by the athlete to cover the entire distance?
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If the athlete maintains their speed when running back down the hill, how far would they travel in 20s?
If the athlete maintains their speed when running back down the hill, how far would they travel in 20s?
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Study Notes
Incorrect Statements
- Sodium and Magnesium are not noble gases. Noble gases are a group of elements in the periodic table that are unreactive and include elements such as Helium, Neon, and Argon.
- The atomic symbol for Sodium is not Mg, it is Na.
- Sodium has a higher atomic mass than Magnesium, not lower.
Correct Statements
- Sodium has a higher atomic number than Magnesium.
- Sodium and Magnesium belong to different periods in the periodic table, not period 4. Sodium is in period 3 and Magnesium is in period 3 as well.
Athlete's Motion
- The athlete runs from the starting point up a hill at a constant speed of 3m/s.
- The athlete covers a distance of 90m while running up the hill.
- The athlete immediately changes direction and runs back along the same path to the starting point.
- The athlete moves with a constant speed of 6m/s while running back down the hill.
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Description
Test your knowledge of Sodium and Magnesium properties, including their atomic numbers, masses, and positions in the periodic table.
