Hilum
Lithium is a metal, while helium is a noble gas. Lithium has a lower atomic number and is more reactive than helium. Lithium is used in rechargeable batteries, while helium is commonly used in gas balloons and cooling systems.
Deuterium is an isotope of Hydrogen. Helium is and entirely different element.
they have different names
No. The difference between them is that helium atoms have electrons, and alpha particles don't.
they are the same.
micropyle
During the first stage of the life stage the butterfly has a micropyle. The micropyle is a funnel shaped opening located at the bottom of the egg.
Neon has 8 more protons and 8 more electrons than helium. It's heavier, but still lighter than air.
The micropyle opening allows the pollen tube to enter the ovule for fertilization. It absorbs water for germination. It provides for the diffusion of respiratory gases.
helium in a jar diff from helium atom
The micropyle
micropyle
entry of micropyle is known as porogamy
micropyle
Population I is younger and has more heavy elements. Population II is older and is almost entirely hydrogen and helium.
Today's blimps are not filled with flammable hydrogen gas like Hindenburg was, but normally the non-flammable helium.
yes