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nataly862011 [7]
3 years ago
9

What is an isotope? How does one isotope differ from another isotope

Chemistry
2 answers:
vova2212 [387]3 years ago
8 0

Isotopes are different versions of a specific element.

Every atom/element is defined by its protons. So if it has 1 proton it's hydrogen no matter what, if it has 2 protons it's helium no matter what and so on. If you know the number of protons, you know the element.

You can change the number of neutrons in the nucleus and you'll get isotopes. Atoms that have different numbers of neutrons are isotopes of each other. It's important to understand that the element is the same but one is going to be a little bit heavier or lighter than another.

Shtirlitz [24]3 years ago
5 0

An isotope is an atom with a unique number of neutrons. Isotopes can differ from each other because of their number of neutrons.

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Determine the oxidation state of the metal ion in [co(nh3)5br]2+. express your answer as an integer.
Zanzabum
                                           [Co(NH₃)₅Br]²⁺

Ligands and charges on them,

                             5 × NH₃  =  5 × 0  =  0

                             1 × Br⁻¹  =  1 × -1  =  -1

Charge on sphere  =  +2

So, putting values in equation,

                                       Co + (0)₅ - 1  =  +2

                                       Co + 0 - 1  =  +2

                                       Co - 1  =  +2

                                       Co  =  +2 + 1

                                       Co  =  +3

Result:
           Oxidation state of Co in [Co(NH₃)₅Br]²⁺ is +3.
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3 years ago
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What they have in common is that they both have the same number of atoms. Hope this helps. :)
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In No3-1 the oxidation number of oxygen is -5 so oxidation number of N would be +5

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Molar mass HNO₃ = 63.0 g/mol

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