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The element in group 18 with the smallest radius is helium. As the lightest noble gas, helium has a very small atomic size due to its two protons and two electrons, which create a strong effective nuclear charge that pulls the electrons closer to the nucleus. This results in a smaller atomic radius compared to other elements in the same group.
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What group of the periodic table contains the element argon?
group 18
Which group 18 element can react with Fluorine?
No group 18 element can react with fluorine under normal conditions, as they have a stable and inert configuration with full valence shells.
What is the period and group of element having 18 neutrons?
Many isotopes have 18 neutrons.
Why atomic radius remains almost uncharged as you move through period 2 from group 14 to group 18?
The increase in nuclear charge as you move across period 2 from group 14 to group 18 is offset by a simultaneous increase in the number of electrons, resulting in the atomic radius remaining relatively constant. The additional electrons in each successive element are added to the same energy level (n=2 in period 2), which keeps the average distance of the outermost electrons from the nucleus consistent.
How many valence electron does a group 18 element have?
8
Why is there a sudden jump in the atomic radius in elements in group 18 and the next higher element in the next period in group 1?
When the element moves from group 18 to group 1, it moves to a new period. Each period has a one more electron shell than the previous. The group 1 element has one more electron shell than the group 18 element; hence, it's atomic radius is greater.
What element is group 18 period 5?
The element in group 18 period 5 is Xenon (Xe).
Is xenon a transition element?
No, xenon (Xe) is not a transition element. It is a group 18 element or noble gas.
What is the lightest element in group 18 of the periodic table?
Helium is the lightest member in group 18.
What group of the periodic table contains the element argon?
group 18
What group on the periodic table contains element bonds?
group 18
Is xenon a element?
No, xenon (Xe) is not a transition element. It is a group 18 element or noble gas.
What is the element that has the most protons of any element in group 18?
Radon (Rn) has the most protons of any element in Group 0 (18) with 86 protons. However, if or when Ununoctium is officially confirmed, that will become the element with most protons in that family, with 118 protons.
What is the number of the group in which the element have a stable outer energy level?
group 18
Which group 18 element can react with Fluorine?
No group 18 element can react with fluorine under normal conditions, as they have a stable and inert configuration with full valence shells.
What is the period and group of element having 18 neutrons?
Many isotopes have 18 neutrons.
Why atomic radius remains almost uncharged as you move through period 2 from group 14 to group 18?
The increase in nuclear charge as you move across period 2 from group 14 to group 18 is offset by a simultaneous increase in the number of electrons, resulting in the atomic radius remaining relatively constant. The additional electrons in each successive element are added to the same energy level (n=2 in period 2), which keeps the average distance of the outermost electrons from the nucleus consistent.
