Nickel is a transition metal and sodium is an alkali metal (group 1 metal).Predict which one will have a higher density.NickelSodium
Question
Predict which one will have a higher density.
Nickel
Sodium
- Nickel is a transition metal
- Sodium is an alkali metal (group 1 metal)
Solution
Nickel will have a higher density. Here's why:
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Position in the Periodic Table: Nickel is a transition metal, which are typically denser than alkali metals like sodium. This is because transition metals have more electrons which can move to the core, pulling all the layers of electrons closer to the nucleus and increasing the density.
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Atomic Mass: Nickel has a higher atomic mass than sodium. This means that nickel atoms are heavier, and if you pack the same number of nickel and sodium atoms into the same volume, the nickel will be heavier (and thus denser).
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Electron Configuration: Transition metals like nickel have more tightly packed electron configurations than alkali metals like sodium. This means that the atoms can pack more closely together, increasing the density.
So, based on its position in the periodic table, its atomic mass, and its electron configuration, we can predict that nickel will be denser than sodium.
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