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The densities of the noble gases increase with increasing molecular mass. The increase in density is due to the increase in Atomic Mass. Helium is about one seventh the density of air and can be used in balloons and lighter-than-air craft. Xenon is about five times the density of air.
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What is the trend in density in noble gases?
The densities of the noble gases increase with increasing molecular mass. The increase in density is due to the increase in atomic mass. Helium is about one seventh the density of air and can be used in balloons and lighter-than-air craft. Xenon is about five times the density of air.
What is the trend in density as you go down the group of halogens?
The density increase down.
What is the density trend in halogens as you go sown the group?
As you move down the group of halogens in the periodic table, the density generally increases. This trend is due to the larger atomic and molecular masses of the heavier halogens, which outweigh the increase in volume. For example, fluorine and chlorine are gases at room temperature, while bromine is a liquid and iodine is a solid, reflecting their increasing densities. Thus, the trend shows that as you descend the group, the halogens become denser.
Why are the noble gases not included in the trend in ionization energy?
Noble gases have stable electron configurations with a full valence shell, so they have a high ionization energy. Their ionization energy values don't follow the typical trend due to their unique electron structure, which makes them less likely to lose or gain electrons easily compared to other elements.
Which of the trends mentioned in this section generally and steadily increase as you go from left to right and bottom to top on the periodic table and ignore the noble gases?
Electronegativity, for an important trend.
What is the trend in density in noble gases?
The densities of the noble gases increase with increasing molecular mass. The increase in density is due to the increase in atomic mass. Helium is about one seventh the density of air and can be used in balloons and lighter-than-air craft. Xenon is about five times the density of air.
Which group of elements is very stable and nonreactive?
Noble gases are the group of elements that are very stable and nonreactive due to their full outer electron shells, which gives them little tendency to gain, lose, or share electrons to form chemical bonds.
What is the trend in density as you go down the group of halogens?
The density increase down.
What is the density trend in halogens as you go sown the group?
As you move down the group of halogens in the periodic table, the density generally increases. This trend is due to the larger atomic and molecular masses of the heavier halogens, which outweigh the increase in volume. For example, fluorine and chlorine are gases at room temperature, while bromine is a liquid and iodine is a solid, reflecting their increasing densities. Thus, the trend shows that as you descend the group, the halogens become denser.
Why are the noble gases not included in the trend in ionization energy?
Noble gases have stable electron configurations with a full valence shell, so they have a high ionization energy. Their ionization energy values don't follow the typical trend due to their unique electron structure, which makes them less likely to lose or gain electrons easily compared to other elements.
Comment on the trend in the boiling points of the Noble gas elements and why do boiling points vary in this manner.?
The trend in boiling points of Noble gas elements increases down the group, from helium to radon. This is because as you move down the group, the atomic size and London dispersion forces also increase, leading to stronger interatomic forces and higher boiling points. Additionally, the increasing number of electrons in the heavier Noble gases results in more polarizable electron clouds, further contributing to the trend.
Who started the noble prize trend?
alfred noble
Which of the trends mentioned in this section generally and steadily increase as you go from left to right and bottom to top on the periodic table and ignore the noble gases?
Electronegativity, for an important trend.
What happens to the reactivity of noble gases as you go down the periodic table?
Firstly noble gases are very unreactive. There are no known compounds of helium or neon, the first two members group 18. There is a compound reported for Ar but it is very reactive. Krypton has some compounds again these are reactive. More compounds of Xenon are known. Radon is pretty well ignored, its radioactive. You could extrapolate a trend- they get more reactive as you go down the group.
Why boiling point and physically state of haloge ns and noble gases increases down the group?
The efect of dispersion forces increases with the number of electrons. As you go down the halogen group the number of electrons (2 X atomic number) is F2 18e gas bp 85K Cl2 34e gas bp 239 K Br2 70e liquid bp 332 K I2 106e solid bp 457K The trend is is similar for the noble gases although as these are monoatomic the number of electrons does not increase that quickly.
What general observations can be made of trends within rows and groups for density?
Within a row, as you move from left to right, the trend is typically an increase in density due to the increase in atomic number. Within a group, as you move down, the trend is typically an increase in density due to the increase in atomic mass and the addition of more electron shells.
Is there a density trend on the periodic table?
Density increases down a group on the periodic table. The trend is more complex across a period. Metals are generally more dense than nonmetals, but among metals on a period, density increases to the right.
