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Oksana_A [137]
2 years ago
15

Why is it called the periodic table of elements (why is the word periodic in it)

Chemistry
1 answer:
olchik [2.2K]2 years ago
8 0

Answer:

It is called "periodic" because elements are lined up in cycles or periods. From left to right elements are lined up in rows based on their atomic number (the number of protons in their nucleus). ... Each horizontal row in the table is a period. There are seven (or eight) total periods.

Explanation:

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I suspect that the pressure of this change is constant therefore

The equation is used from the combined gas law. (When pressure is constant both P's will cancel out P/P = 1)
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3 0
3 years ago
If an atom with a mass number of 27 has 14 neutrons,it is an isotope of which element​
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Explanation:

   

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Which set of numbers gives the correct possible values of I for n = 22
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Hello friends

Explanation:

<h3>For a given principal quantum number for or n, the corresponding angular quantum number or is equivalent to a range between 0 and( n-1)</h3>

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<h3>Hope it's helpfully. </h3>
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