Noble Gases

I- ion (iodine ion and not iodine) and xenon will have the same number of electrons (54 electrons)

At the same temperature and pressure, the molar volumes of gases are pretty close to equal (as long as they are at a low enough density to behave like ideal gasses). That being the case, one mole of helium weighs only about 4 grams while a mole of air weighs around 28.97 g (taking a weighted average of the components of the air) so for the same volume, the air would have more mass than the helium unless the helium was much colder or at a much higher pressure.

Helium gas is commonly used in balloons to make them float and rise into the sky. Helium is lighter than air and provides the lift needed to overcome gravity and allow the balloon to ascend.

The atomic weight of neon is 20.180 amu, or atomic mass units.

"Noble gas configuration" means that in writing out an electron configuration for an atom, rather than writing out the occupation of each and every orbital specifically, you instead lump all of the core electrons together and designate it with the symbol of the corresponding noble gas on the periodic table (in brackets). For example, the noble gas configuration of nitrogen is [He]2s22p3

No, a mole of carbon atoms has the same number of atoms as a mole of helium atoms (Avogadro's number, which is about 6.022 x 10^23 atoms). The difference lies in their atomic masses, as carbon atoms are heavier than helium atoms.

The reactivity of an element increases towards the top and right of the periodic table (until the column of noble gases is reached). Chlorine's outer shell contains 7 electrons that make it very reactive. Helium is a noble gas and is non reactive. Elements found in the middle of the table, like nickel and iron, are reactive, but less reactive than chlorine

helium is a noble gas. lithium is an alkali metal.

Neon molecule is mono-atomic.

20.18 g (1 mole) of neon will have 6.023 x 1023 atoms of neon

A helium atom has no electrical charge because it has equal numbers of protons and electrons. The positive charge of the protons is balanced by the negative charge of the electrons, resulting in an overall neutral charge for the atom.

Helium side effects typically last for a short period of time, usually just a few minutes. The effects are temporary and will wear off as the helium is expelled from your system by breathing out normal air. If you experience prolonged side effects or difficulty breathing, seek immediate medical attention.

In nuclear fusion, four hydrogen atoms combine to form one helium atom. This process releases a large amount of energy in the form of light and heat. It is the primary energy-producing process in stars like the Sun.

The first evidence of helium was observed on August 18, 1868 as a bright yellow line with a wavelength of 587.49 nanometers in the spectrum of the chromosphere of the Sun.

A helium atom is four times lighter than a carbon atom. This is because helium has two protons and two neutrons in its nucleus, while carbon has six protons and six neutrons. The atomic mass of helium is approximately 4 atomic mass units, while the atomic mass of carbon is approximately 12 atomic mass units.

2340ish pounds curb weight

Filling a balloon with enough helium for flight takes a lot of helium, hot air balloons only use hot air because it only takes a couple of tanks of propane to heat the air, which is much more cost effective than filling the balloon with helium.

Airships use helium because they are used to stay in the air for extended periods of time, so it makes sense to pay for the helium to fill it once, rather than the propane to keep the air hot.

Helium is used in a variety of applications, including in cryogenics for cooling superconducting magnets, in airships and balloons for lift, in diving tanks for reducing the risk of decompression sickness, and in welding to shield the weld pool from contaminants.

Noble gases have a full outer electron shell, making them very stable and unreactive. This stability comes from their electron configuration, where the outer shell is complete with the maximum number of electrons. This full shell makes noble gases unlikely to gain or lose electrons in chemical reactions.

No, Ni2+ does not have a noble gas configuration. A noble gas configuration is attained when an atom has a full valence shell of electrons, like the noble gases in Group 18 of the periodic table. Ni2+ has lost electrons to achieve a stable electron configuration but does not have a full valence shell like a noble gas.

Some light bulbs contain a small amount of the noble gas argon to help increase their lifespan and reduce flickering.

Helium itself is not flammable. However, the material used to make the balloon, such as latex or mylar, can be flammable. It is important to avoid exposing helium-filled balloons to open flames or high heat sources.

Neon is the most stable out of lithium, carbon, fluorine, and neon. It is a noble gas with a full outer electron shell, making it very unreactive and stable. Lithium, carbon, and fluorine are not as stable as neon because they are more likely to form chemical bonds to achieve a full outer electron shell.

yes! It is because Neon has the largest atomic mass so the force of attraction between electrons and protons in the positively charged nucleus is the highest compared to all the other electrons in period 2.

Chlorine is the most active nonmetal out of argon, chlorine, potassium, and selenium. It belongs to the halogen group, which is known for its high reactivity. Chlorine readily reacts with other elements to form compounds.