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I would say no.
The potassium atom has 1 valence electron which is in the 4th valence shell. To form the potassium ion, it gives away this electron - thus becoming K+. Now, it has no electrons in the 4th valence shell - they are all in the 3rd valence shell. Argon also has all of its electrons in the 3rd valence shell. Also, K+ now has the same number of electrons as Argon.
The reason why, at least I would say, argon has a larger radius than K+ is that even though they are in the same valence shell and have the same number of electrons, argon has one less proton than K+. This means that argon's nucleus does not pull in its electrons with quite as much force as K+. Therefore, the electrons (on average) are not as close to the nucleus as with K+.
At least, this is how I would reason this out.
Chris O'Brien
Wiki User
∙ 11y agoYes it is. Down the group, the size increases.
Wiki User
∙ 11y agoyes. krypton belongs to period 4 and is larger than argon (belongs to period 3).
Wiki User
∙ 10y agono, a posassiu ion is larger than a argon atom
Wiki User
∙ 15y agoYes
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What are the elements in the air?
Nitrogen, oxygen carbon-dioxide, trace amounts of helium and other compounds.
Does neon belong in the halogen family?
Neon is a member of the noble gas family. Neon is used to make neon signs and television tubes. Liquid neon is used as a cryogenic refrigerant.
What is a neon cactus?
a cactus that is neon colored.
Are oxygen nitrogen an neon elements?
Yes, Oxygen, Nitrogen and Neon are elements. Symbols O for oxygen N for Nitrogen, and Ne for Neon.
What is neons classification?
Neon is a noble gas. It has 8 electrons in it's valence shell, so that shell is full. Since the shell is full the neon atom is not very reactive with other atoms (allowing it to gain or lose electrons by bonding).
Is neon bigger or smaller than argon?
Neon is smaller.
What is the smallest atomic radius in period 5?
Argon is the atom that has the smallest radius in Period 3. As you go cross Period 3 from left to right, the atomic radii of the elements decrease. The elements in Period 3 from left to right begin with sodium and ends with argon.
Are neon and argon atoms the same?
No. Neon atoms and Argon atoms have different atomic numbers. Which means they have different numbers of protons.
What has the smallest atomic radius out of hydrogen sodium and lithium?
Hydrogen has the smallest atomic radius - 25 pm.
What is neon's atomic radius?
i dont know sorry
What is the element neon's atomic radius?
65 picometers.
What are the 3 lightest members of the noble gases?
Helium, neon, and argon are the three lightest members of the noble gases.
What are the most reactive element out of neon argon and helium?
They are both noble gases. Neon is more reactive than Argon because it has a smaller radius, therefore its electrons are closer to the nucleus
What is a mono atomic gases?
The noble gases, e.g. helium, argon, neon, etc. are monoatomic gases.
What element has the smallest atomic radius of all the p-block elements?
it's neon
What element is Neon and argon?
Neon and argon are two distinct elements.
What are all the gases?
The noble gases from the least atomic number are, helium, neon, argon, krypton, xenon and redon.
