Group 0 Elements Flashcards
Atomic Structure and the Periodic Table (11 cards)
What are Group 0 elements commonly known as?
Noble gases
Group 0 elements include helium, neon, argon, and a few others.
How many electrons do noble gases have in their outer energy level?
Eight electrons
Helium is an exception with only two electrons.
What is the electron configuration of helium?
Two electrons in the first shell
Helium’s first shell can only hold 2 electrons.
Why are noble gases considered inert?
They have a full outer-shell
This stability means they do not readily react with other elements.
What state do all Group 0 elements exist in at room temperature?
Colourless gases
All noble gases are colorless at room temperature.
Are noble gases flammable?
No, they are non-flammable
Noble gases do not ignite or burn.
What trend is observed in the boiling points of noble gases?
They increase down the group
This trend is accompanied by an increase in relative atomic mass.
What causes the increase in boiling points of noble gases?
Greater intermolecular forces
This occurs due to an increase in the number of electrons in each atom.
What is the relationship between the boiling points of helium and neon at 25°C?
Helium is a gas
Helium has a lower boiling point than neon.
What is the predicted boiling point of xenon if radon has -62°C and krypton has -153°C?
-108°C
This is calculated as the average of the boiling points of radon and krypton.
Fill in the blank: Noble gases exist as ________ gases.
monatomic
They consist of single atoms not bonded to each other.
