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Oxygen is less dense.

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7y ago

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Related Questions

Which element contains 2 protons less than krypton?

Element 34, which is selenium, contains 2 protons less than krypton. Krypton has 36 protons, while selenium has 34 protons.


What is more reactive oxygen or selenium?

Oxygen is more reactive than selenium. Oxygen is a highly reactive element that readily forms compounds with other elements, while selenium is less reactive in comparison. Oxygen's reactivity is evident in its ability to support combustion and oxidation reactions, whereas selenium's reactivity is more limited due to its position in the periodic table.


How does density of helium compare to density of oxygen and nitrogen?

Helium is lighter (less dense) than oxygen & nitrogen.


What element has an atomic mass greater than 75 but less than 79?

Element 34, Selenium, has an atomic mass of about 78.96.


Is the oxygen less at high altitudes?

Yes. Air is less dense at higher altitudes, so the oxygen is at a lower concentration.


Does the composition of air change from layer to layer?

yes, the air becomes less dense and there is less oxygen


Why does less dense wood burn faster?

more space for air (oxygen)


Is oxide an element or an compound?

An oxide is a compound that contains oxygen and at least one other element that is less electronegative than oxygen.


Which element is likely to be the most brittle out of selenium cobalt platinum or zinc?

Selenium is the most brittle of the elements listed: The others are all full metals, but selenium is only a semi-metal or a metalloid, and ductility, the negative of brittleness, is a property primarily of metals.


What is the least dense thing?

Hydrogen gas is considered the least dense element. It is less dense than air, which is why it is often used in balloons.


Why hydrogen gas collected by upward delivery?

Because hydrogen gas is less dense than air(mostly nitrogen and oxygen), and the less dense gas flows to go above the more dense(and escape the atmosphere).


Is selenium non reactive?

Selenium can be reactive and form compounds with other elements. It reacts with oxygen to form oxides and with water to form various compounds. However, it is less reactive compared to other elements in the same group like sulfur and tellurium.