is helium lighter than oxygen?

Answer 1

Hi,

For this question, we should look at the logic behind this question. Remember, at the atomic level, Helium has 2 protons and 2 electrons and Oxygen has 6 protons and 6 electrons. However, since we're talking about mass and protons influence the mass of an atom, we need to look at the number of protons in an element.

Now, like I've mentioned above, Helium has only 2 protons in the center of the atom or at the nucleus. Therefore, the atom is less massive than Oxygen which has 6 protons.

That is why Helium is lighter than Oxygen! =)

+ NOTE: Electrons are not accounted for in mass calculations/studies since they are not located in the center of the atom.

I hope that helps you out! Please let me know if you have any other questions!

Sincerely,

Andrew

Answer 2

Helium Lighter Than Air

Answer 3

This Site Might Help You.

RE:
is helium lighter than oxygen?

Answer 4

Yes, by a lot oxygen has an atomic weight of about 16 where as helium is 4 also oxygen is a diatomic element so in its natural state its O2 giving it an atomic weight of 32

Answer 5

The simple answer is yes. If you look at a periodic table, you will notice that Helium appears second on the table, whereas Oxygen appears at the number 8 position. Further inspection reveals that Helium has a molar mass of about 4 g, whereas Oxygen has a molar mass of about 16 g. Even further inspection indicates that the density of helium is about .178g/L whereas the density of oxygen is 1.429 g/L which is why helium balloons float.

Answer 6

helium has a dencer volume to it then oxygen it is lighter by meaning so this is why oxgyen is attracted to the earth and helium floats it but oxygen is lighter when hotter but oxygen should not be heated as if it has a fuel source like in a balloon it will burn and cause fire not a good idea helium also shrinks our vocal chords which is why when inhaled we sound stupid and squeeky lol

Answer 7

Helium is lighter than oxygen.

Helium is inert, atomic weight 4, so 1 mole of helium at STP weighs 4 gm.

Oxygen does not occur free, but is combined with another oxygen atom as O2. The gram molecular weight of O2 is 16 x 2 = 32, so 1 gram molecular equivalent of O2 at STP weighs 32 grams.

Some oxygen is found as ozone, O3, but ozone is very reactive as an oxidizing agent, so it tends not to remain around very long. One gram molecular equivalent of ozone at STP would weigh 16 x 3 = 48 grams.

Answer 8

Yes.

The Standard Atomic Weight of both are:

Helium - 4.002
Oxygen - 15.999

So Oxygen is, on average, four times as heavy as Helium. If you look at the periodic table, the order in which the particles are listed roughly mirrors their relative weights.

Answer 9

Actually the question is if helium is "less dense" than oxygen. And the answer is yes. If you get a periodic table of elements, you will see that they are numbered, that number (atomic number) is directly proportional to the mass of its atom. So the higher the number, the more dense the element is ("heavier"). Helium is 2 and oxygen is 8, so helium is "lighter".

Answer 10

do a simple test. Fill one balloon with helium and one with oxygen then let them both go.

Wait a few minutes & see which one has floated away.

PS: be sure to mark each one with what is in it with a marker, being careful not to puncture it.