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Te and I,Ar and K,Co and Ni

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Q: What are the three pairs of elements that are out of order in the periodic table in terms of their atomic masses. Why it is necessary to invert their order in the table?
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Related questions

What elements make up Invert Sugar?

Carbon, Hydrogen and Oxygen.


What is the difference between invert level and invert elevation?

Invert Level and Invert Elevation are one in the same. Invert Level = Invert Elevation (IE).


Why odd atomic number elements have 2 isotopes?

I don't know where you got the notion that elements of odd atomic numbers have two isotopes, but we don't have to look far for a counterexample: hydrogen... atomic number 1... has not one, not two, but THREE isotopes that exist for meaningful lengths of time. If you mean STABLE isotopes, then we have to go a bit further: the first four elements of odd atomic number (hydrogen, lithium, boron, nitrogen) do in fact have two stable isotopes. However, at the fifth we find our counterexample: fluorine (atomic number 9) has only one stable isotope, fluorine-19. Furthermore, helium (atomic number 2) ALSO has two stable isotopes, so we can't even invert the original question and ask why EVEN atomic number elements DO NOT have two isotopes. The question is therefore meaningless, as it's asking for an explanation of something that does not, in fact, actually happen.


What is a sentence for invert?

why did you invert the photo? Life can be Inverted anytime!


How 2 divide a mixed number by a mixed number?

Change them into improper fractions. Invert the second fraction and multiply them together. Reduce if necessary.


Why do you invert fractions?

When you divide by fractions, you invert and multiply.


When was Nixon invert created?

Nixon invert was created in 1995.


Can you make a sentence with invert?

"If you invert your sock you will be wearing it inside out orupside down"What if you're standing on your head?What if you are a true introvert?What if you eat your sock?


Is invert a noun?

No. Invert is a verb. It means to turn something upside down.


What is it called when you invert a stitch?

The verb is "purl". Thus, to invert a stitch is to purl.


What detergents are invert soaps?

soaps having a chiral nitrogen are invert soaps


Invert in a sentence?

Invert means to turn inside out or turn upside down. You could use a sentence like, she pushed the button until it was in an invert position.