How do find the number of electrons, protons, and neutrons given a specific element?

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How do find the number of electrons, protons, and neutrons given a specific element?

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Answer 1 · 2017-07-28T03:47:23

Got a Periodic Table.........

Explanation:

The Periodic Table, which will made available to you in every test of physics and chemistry you ever sit, tells you EXPLICITLY the number of protons, electrons, and (to a first approx.) neutrons, in all the known elements.

For hydrogen, $Z, the atomic number=1$ $"Z, the atomic number=1"$ , for sulfur, $Z = 16$ $Z=16$ , and for oxygen, $Z = 8$ $Z=8$ . By definition, $Z$ $Z$ represents the number of nuclear protons, and thus specifies the ability of the element. And thus for one formula unit of $H_{2} S O_{4}$ $H_2SO_4$ , the number of $nucular protons$ $"nucular protons"$ $=$ $=$ $16 + 4 \times 8 + 2 = 50$ $16+4xx8+2=50$ . Because these represent fundamental positive charges, you should be able to tell me how many electrons there are in the NEUTRAL molecule $pdq$ $"pdq"$ .

The number of neutrons is a bit more problematic inasmuch as a given element can several isotopic forms. For sulfur, oxygen, and hydrogen we choose the COMMON isotopes, $^{1} H$ $""^1H$ , $^{16} O$ $""^16O$ , and $^{32} S$ $""^32S$ , which have $0, 8,$ $0, 8,$ and $16$ $16$ neutrons respectively (the neutrons and the protons together represent the atomic mass). So you do the sum.

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How do find the number of electrons, protons, and neutrons given a specific element?

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