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If by size you mean "mass", then Noble Gases have greater mass because they have more protons and neutrons in the nucleus. This follows the Periodic Trend across periods that mass increases from left to right. There are a few exceptions that can be found, which is why elements are ranked according to # protons and not mass.
If by physical size, then the answer gets more complicated. An atom's size is often measured using its atomic radius, which is the physical distance from the center of the nucleus to the outermost shell (aka "orbital" or "energy level"). By referencing the atomic radius, Noble Gases are actually SMALLER even though the nucleus is more massive. This is due to the electrostatic attraction between protons and electrons. As # protons increases the # electrons also increases. This increases the "tug of war" between the particles and causes the electrons to be held closer to the nucleus. This decreases the overall size, or radius, of the atom.
What else can I help you with?
In the same period what have large atomic radii alkali metals or noble gases?
Noble gases have larger atomic radii than alkali metals in the same period.
What is the period number for noble gases?
group 18, all periods
Configuration of noble gas?
For helium it is 1s2. For the other noble gases it will be ns2 np6 where n is the period in which the noble gas in present.
Which period contains the most elements that are all gases at STP?
The noble gases in Group 18 contain elements that are all gases at standard temperature and pressure (STP). Therefore, the period that contains the most elements that are all gases at STP is the third period.
How many electrons are in the outer shell of a noble gas with an atomic mass greater than three?
Noble gases have a full outer shell of electrons, which makes them stable and unreactive. For noble gases, the outer shell typically contains eight electrons, following the octet rule. This applies to all noble gases with atomic masses greater than three, such as neon, argon, krypton, xenon, and radon. Therefore, a noble gas with an atomic mass greater than three has eight electrons in its outer shell.
In the same period what have large atomic radii alkali metals or noble gases?
Noble gases have larger atomic radii than alkali metals in the same period.
Which period are the noble gases in?
In all periods, group 18.
What is the period number for noble gases?
group 18, all periods
Configuration of noble gas?
For helium it is 1s2. For the other noble gases it will be ns2 np6 where n is the period in which the noble gas in present.
What is the family name for neon on the periodic table?
Neon is a noble gas located in period 2 on the periodic table.
What group and period is neon in?
Neon is in period 2 of the periodic table, and in group 18, the noble gases
What do the noble gases have in commmon?
All noble gases have completely filled valence orbitals. Helium has 2 valence electrons, the others have 8. They are stable configurations and as such noble gases are generally chemically inert at standard temperature and pressure.
Which period contains the most elements that are all gases at STP?
The noble gases in Group 18 contain elements that are all gases at standard temperature and pressure (STP). Therefore, the period that contains the most elements that are all gases at STP is the third period.
How many electrons are in the outer shell of a noble gas with an atomic mass greater than three?
Noble gases have a full outer shell of electrons, which makes them stable and unreactive. For noble gases, the outer shell typically contains eight electrons, following the octet rule. This applies to all noble gases with atomic masses greater than three, such as neon, argon, krypton, xenon, and radon. Therefore, a noble gas with an atomic mass greater than three has eight electrons in its outer shell.
What is one of a group of elements that seldom combine with others?
The noble or inert gases.
How many elements have a density greater the 0 and less than 1?
There are a total of 11 elements that have a density greater than 0 and less than 1 g/cm³ at standard temperature and pressure. These elements include lithium, sodium, potassium, rubidium, cesium, francium, hydrogen, helium, and a few others in the lighter noble gases. Most of these are alkali metals or noble gases.
What is odd element in noble gases?
The odd element in the noble gases is xenon (Xe). It has an odd number of protons and neutrons in its nucleus, unlike the other noble gases (helium, neon, argon, krypton, radon) which have an even number.
