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Dennis_Churaev [7]
4 years ago
11

Why is calcium harder than potassium?

Chemistry
1 answer:
krok68 [10]4 years ago
3 0
Because calcium<span> atoms have smaller radii </span>than potassium<span> atoms since </span>calcium<span> atoms have a greater nuclear charge. Each </span>calcium <span>atom will be closer to the delocalized electrons. Thus, the bonds in </span>calcium<span> will be </span>stronger than<span> that in </span><span>potassium.</span>
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AlladinOne [14]

They both have two electron shells

<h3>Further explanation</h3>

The period 2 element lies in the second row of the periodic system.

Consists of the elements: lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and neon

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electron configuration : [He] 2s¹

atomic number = number of proton=number of electron(in neutral atom)

So Li have 3 protons and 3 electrons

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atomic number : 8

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So O have 8 protons and 8 electrons

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6 0
3 years ago
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The correct answer:C) NaCl(s)
Hope this helps!
4 0
4 years ago
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tia_tia [17]

Hello!

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5 0
3 years ago
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