As you proceed down the periodic table, the metallic character becomes stronger. This is because as the atomic radius increases, there is less attraction between the nucleus and the valence electrons due to the greater distance between them, making electrons simpler to shed.
Answer:
Atoms are the building blocks of matter. They are the smallest particles of an element that still have the element's properties. All atoms are very small, but atoms of different elements vary in size. Three main types of particles that make up all atoms are protons, neutrons, and electrons.
Explanation:
<span>Answer: 8.15s
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<span>Explanation:
</span><span />
<span>1) A first order reaction is that whose rate is proportional to the concenration of the reactant:
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<span>r = k [N]
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<span>r = - d[N]/dt =
</span><span />
<span>=> -d[N]/dt = k [N]
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<span>2) When you integrate you get:
</span><span />
<span>N - No = - kt
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3) Half life => N = No / 2, t = t'
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<span>=> No - No/ 2 = kt' => No /2 = kt' => t' = (No/2) / k
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<span>3) Plug in the data given: No = 0.884M, and k = 5.42x10⁻²M/s
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t' = (0.884M/2) / (5.42x10⁻²M/s) = 8.15s</span>
Force... I hope this helped you
Answer:Re3(PO4)2 I think I'm wrong
Explanation:
