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What rules are used to assign oxidation number?
First, determine which family it is in on the periodic table. The group number equals the number of valence electrons that it has. It needs to end up with eight valence electrons to have a full octet. So if it has seven valence electrons, it will gain one electron to be stable. On the other end of the table, it will lose electrons to be stable.
Are there any other isotopes of xenon?
Xenon has eight stable naturally occuring isotopes. Besides these stable forms, there are over 40 unstable isotopes that have been studied.
Why are some elements stable on their own while others are more stable in compound?
Some elements are stable on their own because they have a complete outer energy level. These elements are called noble gases. Hydrogen and Helium have a complete energy level with two electrons and all of the other elements are stable with eight. When an element doesn't have a complete outer energy level it is stable in a compound. This is because it is being combined with another element to complete it's energy level.
Why gold is stable?
Not all isotopes of gold are stable. Getting into the details is fairly complicated, but in essence it boils down to this: certain combinations of protons and neutrons are stable, and others aren't. For gold, there are stable combinations. For some other elements, it turns out that there is no number of neutrons that can stabilize that particular number of protons (francium, for example, has no stable isotopes).
What predicts that atoms will react with each other to become more stable by filling their valence shells with eight electrons?
the octet rule does
Why are noble gases stable and unreactive?
Noble gases are stable because they have a complete outer shell - that is, eight valence electrons. Other elements react in order to gain or lose valence electrons, but noble gases are satisfied.
What does the fluorine atom do to become stable unreactive?
A stable arrangement of electrons in the outer shell is 8, but fluorine has only 7, that is why it is unstable. It needs another electron, desperately. No other element craves electrons as strongly as fluorine does.
Valence electrons found where?
Valence electron are found in the outer shell of an atom. Depending on the number of valence electrons, the atom is more or less stable: fewer => less stable and more => more stable (inert). Stable = less likely to react with other atoms.
What is the most stable number of valence electrons?
The most stable number of valence electrons is 2 for hydrogen and helium, which have only one electron shell in the shell model for atomic electron configurations, and 8 for all other elements.
What is The quotient of one number divided by another number?
the amount of times the number being divided by the other number goes in to the other number!
The product of 9 and another number is 135 what is the other number?
It is 15
Can 0 be divided by another number?
Yes, by every other number.
