Oxygen.
Helium is a colorless, odorless, and tasteless gas that is the second lightest and second most abundant element in the universe. It is known for its low density and non-reactive properties, making it commonly used in applications like filling balloons or as a coolant in cryogenics.
Has no odor. Nitrogen is a gaseous chemical element, chemical symbol N, atomic number 7. Nitrogen is a colourless, odourless, tasteless gas, making up 78% of Earths atmosphere and is a constituent of all living matter. Kimber :)
Uranium, number 92 is the last of the naturally occurring elements and, of course, it has 92 electrons.
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Astatine is the rarest naturally-occurring element, with the total amount in Earth's crust estimated to be less than 1 oz (28 g) at any given time. This amounts to less than one teaspoon of the element. Guinness World Records has dubbed the element the rarest on Earth, stating: "Only around 0.9 oz (25 g) of the element astatine (At) occurring naturally". Isaac Asimov, in a 1957 essay on large numbers, scientific notation, and the size of the atom, wrote that in "all of North and South America to a depth of ten miles", the number of astatine atoms at any time is "only a trillion".
Helium is a noble gas, it is colourless, odourless gas at STP. It is a chemically inert element.
Helium is an element a pure substance it is a chemical. It has properties eg it is a gas, it is colourless, it is odourless
the argon in the electric lights went unnoticed meaning- unreactive, colourless, odourless, element of rare gas
Krypton from the Greek kryptos means hidden one because of its colourless, odourless, tasteless, gaseous properties (like other noble gases).
helium is odourless.
Yes, xenon is a naturally occurring element found in trace amounts in the Earth's atmosphere. It is not a synthetic element.
Astatine is considered the rarest naturally occurring element on Earth. It is extremely radioactive and is typically only found in trace amounts in uranium and thorium ores.
neon is a colourless element
The lightest naturally occurring actinide on Earth is thorium, which has the atomic number 90. It is a naturally occurring radioactive element found in small amounts in soil and rocks.
No. It is a "Rare Earth"- found only in trace amounts, but naturally occurring.
argon is a non- metal.It is a colourless odourless gas
No, xenon is a naturally occurring chemical element that is part of the noble gases group on the periodic table. It is found in trace amounts in the Earth's atmosphere and is extracted through the process of fractional distillation of liquid air.