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Old textbooks usually gave the noble gases group 0., although some did call it group VIIIA.

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How is the noble gas family different from all other families on the periodic table?

The noble gas family, sometimes also called the inert gases, all have their valence shells filled with the maximum number of electrons allowed for that shell. And because each noble gas is "maxed out" as far as the population of the valence band, the elements aren't inclined to react with any other elements. They even travel around as single atoms, unlike other gases which usually travel in pairs (diatomic molecules).


What is radian gas?

There is no such thing. There is radon gas, which is a radioactive noble gas. It is given off by some rocks and soil.


What is 9 facts about 18?

The number 18 is an even composite number, meaning it is divisible by numbers other than 1 and itself, specifically 1, 2, 3, 6, 9, and 18. In Roman numerals, 18 is represented as XVIII. In mathematics, 18 is the second triangular number, as it can be arranged in a triangle with 18 dots. The atomic number of argon, a noble gas, is 18, and it is often used in various lighting applications.


What are facts about number 54?

The number 54 is an even composite number, meaning it has divisors other than 1 and itself, specifically 1, 2, 3, 6, 9, 18, 27, and 54. It is the product of the prime factors 2 and 3^3 (2 × 3 × 3 × 3). In Roman numerals, 54 is represented as LIV. Additionally, in the context of chemistry, the atomic number 54 corresponds to xenon, a noble gas.


Which element takes up 0 point 9 percent of the air?

The element that makes up approximately 0.9 percent of the air is argon. Argon is a noble gas and is the third most abundant gas in the Earth's atmosphere, following nitrogen and oxygen. It plays a minimal role in chemical reactions due to its inert nature.