0
What else can I help you with?
What is the 2nd lightest element?
Helium is the second lightest element on the periodic table, with an atomic number of 2 and an atomic weight of approximately 4.0026 atomic mass units.
Why do helium balloons float down?
Helium balloons float down due to the weight of the balloon being greater than the lift force generated by the helium inside. As the helium inside the balloon slowly leaks out over time, the lift force decreases, causing the balloon to float down.
How does the rate of effusion of sulfur dioxide compare to that of helium?
The rate of effusion of sulfur dioxide is slower compared to that of helium. This is because sulfur dioxide is a heavier molecule than helium, so it moves through a small opening at a slower pace. Helium, being a lighter gas, effuses faster due to its lower molecular weight.
If it takes sulfur dioxide gas SO2 20 seconds to diffuse from a container how long will it take helium gas He to diffuse from the same container?
It will take helium gas (He) less time to diffuse than sulfur dioxide gas (SO2) due to its lower molecular weight. Diffusion rate is inversely proportional to the square root of molecular weight, so helium will diffuse faster than sulfur dioxide. Therefore, helium will likely diffuse from the container in less than 20 seconds.
What element has 2 protons 1 neutron and 2 electrons?
Helium has 2 protons, 2 neutrons and 2 electrons. The symbol for helium is He and the atomic number is 2.
What is the helium weight?
Helium's atomic weight = 4 amu
What is the weight of helium?
The weight of helium is very light, as it is one of the lightest elements on the periodic table. Helium has a very low density and weight compared to other elements.
What is the atomic weight of Helium atom?
Helium atom has 2 protons and 2 neutrons (that accounts for its atomic weight). The atomic weight of helium is 4.00260
What is atomic weight of helium?
4.002602 g/mol
What is the chemical mass for helium?
The atomic weight of helium is 4,002602(2).
Is a tank of helium lighter than a empty tank?
No, helium has weight, but it rises when its in an expandable container such as a balloon because it is lighter than the nitrogen rich atmosphere but inside of a rigid container the helium can only add weight. (see the mythbuster's episode about the helium football)
How much would helium in the tires affect the weight of a semi trailer?
Using helium in tires would have a minimal impact on the weight of a semi-trailer. Helium is much lighter than air, but the amount of helium in the tires is very small compared to the overall weight of the trailer, so the difference in weight would be insignificant.
How do you convert 26.7kg of helium into moles of helium?
To convert grams to moles, divide the given mass by the molar mass of helium. The molar mass of helium is approximately 4g/mol. Therefore, 26.7kg of helium is equal to 26,700g, which would be 6,675 moles of helium.
How do you weight a balloon with hellium?
To weight a helium balloon, you can attach small weights to it until it stays grounded. By adding enough weight to counteract the lifting force of the helium, you can measure the weight of the balloon.
How many amu's does helium have?
Helium has a standard atomic weight of 4.0026 atomic mass units (amu).
What elements do helium make up?
The only element helium makes up is helium. Atomic number: 2 Atomic weight 4.00260 u (avg)
How much does helium weigh?
The density of helium is approx. 0,9 g/L.
