0
two
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What is the number of valency electron in helium?
Helium has two valence electrons.
How many electron orbitals does helium have?
How many atoms / electron clouds does helium have ?
What atom contains 1 electron and 2 protons?
None, for it to be an atom it has the have the same number of electrons and protons. Something with 1 electron and 2 protons would theoretically be a helium ion but helium does not form ions.
As a helium filled balloon rises in the air it becomes?
Larger (the air pressure is dropping as it rises).
When a helium atom loses an electron then what is formed?
Type your answer here... when helium atom removes a electron it forms a helium+ ion.(He+)
How hydride ion and helium atom have same number of electron?
Helium has 2 electrons. hydrogen has one electron. Hydride ion is formed when hydrogen gains one electron, and thus hydride ion will also have 2 electrons.
What is the number of valence electron for the elements in Group 8A?
Eight, except for helium which has two.
What is the number of protons neutrons and electrons does helium have?
1 Proton and 1 electron but no neutrons.
Is the helium a donor?
No. Helium doesn't form compounds and is neither an electron donor nor an electron acceptor.
What element has no electron affinity?
Helium has no electron affinity.
Is the element helium an electron donor or acceptor?
Neither. Helium doesn't form compounds and is neither an electron donor nor an electron acceptor.
How many electrons shells does a helium atom have?
The electron configuration of helium is 1s2; two electrons on the first (and the single) electron shell.
