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What are other differences between lithium and helium?
Helium has an atomic mass of 4.- Number of Protons/Electrons: 2- Number of Neutrons: 2Lithium has an atomic mass of 7.- Number of Protons/Electrons: 3- Number of Neutrons: 4Helium has TWO less neutrons than Lithium.
Do alpha particles and helium atoms have same electrons?
No. The difference between them is that helium atoms have electrons, and alpha particles don't.
What is helium cost per 100g?
The cost of helium can vary depending on location, supplier, and quantity purchased. On average, helium can cost between $0.50 to $1 per 100g. However, prices can fluctuate due to factors like demand, availability, and market conditions.
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 are common compounds for helium?
Common compounds for helium include helium-3 (He-3) and helium-4 (He-4), which are isotopes of helium. Helium is typically chemically inert and does not readily form compounds with other elements under normal conditions.
What is the tiny hole in the seed-coat called?
micropyle
What is the function of the micropyle?
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.
Which stage of a butterfly has a 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.
What are the differences between neon and helium?
Neon has 8 more protons and 8 more electrons than helium. It's heavier, but still lighter than air.
Do all seeds to have a hilum and micropyle?
Yes, all seeds have a hilum and a micropyle. The hilum is the scar on the seed where it was attached to the plant, and the micropyle is the small opening in the seed coat through which the pollen tube entered during fertilization.
What are the differences between the properties of nitrogen and helium?
Nitrogen and helium have different properties. Nitrogen is a gas at room temperature, while helium is a gas at very low temperatures. Nitrogen is a common element in the Earth's atmosphere, while helium is much rarer. Nitrogen is essential for life, while helium is mostly used for balloons and as a coolant in certain applications.
What is the opening to the ovule of a conifer called?
The micropyle
Is the difference between helium in a jar in helium?
helium in a jar diff from helium atom
What is the tiny hole on the seed-coat?
The tiny hole on the seed coat is called the micropyle. It allows water and gases to enter the seed, aiding in the process of germination.
What is the tiny hole in the seed called?
micropyle
What are some differences between pop I and pop II stars?
Population I is younger and has more heavy elements. Population II is older and is almost entirely hydrogen and helium.
Does micropyle in the ovule help in diffusion of respiratory gases?
yes
