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REY [17]
3 years ago
7

Elements in the same period have the same number of valence electrons. True or False

Chemistry
2 answers:
Charra [1.4K]3 years ago
8 0
I believe the correct answer is true. <span>Elements in the same period have the same number of valence electrons. Valence electrons are electrons of an atom which is able to participate in the formation of chemical bonds. Hope this answers the question.</span>
jok3333 [9.3K]3 years ago
3 0
The answer is definatly true
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The average atomic mass of the imaginary element : 47.255 amu

<h3>Further explanation  </h3>

The elements in nature have several types of isotopes  

Isotopes are elements that have the same Atomic Number (Proton)  

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Mass atom X = mass isotope 1 . % + mass isotope 2.% ..

isotope E-47 47.011 amu, 87.34%

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The average atomic mass :

\tt avg~mass=0.8734\times 47.011+0.06895\times 48.008+0.0577\times 50.009\\\\avg~mass=41.059+3.310+2.886\\\\avg~mass=47.255~amu

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