Question

what is hillium? Explain it​

Answer 1

Answer:

well I think you mean helium it's an inert gas that has a density less than normal dry air often used in ballons

Answer 2

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${ \orange{Helium}}$

tue number of protons in the centre nucleus of an atom which make each type of atom unique helium is an element which is made up of oy 1 atom helium have always 2 protons a

each and chaning it's number of protons would make it a diffirent element altogether helium is a member of noble gas noble gas is called inert gas the element of group 18 of the perodic table the an element is not very active no compunds of helium ever made

More about helium

helium was discovered not on earth helium was discovered on sun in 1868 french astronomer peire Jansen studied light from the sun during solar eclipse he found proof that new element exist on the sum

symbol

he

atomic no

2

atomic mass

4.002602

family

group a

noble gas

electronic configuration

1s²

${ \orange{physical \: properties}}$

helium is tasteless gas is has a number of unusual properties helium is only the has that cannot be made into solid

temperature of helium is -271°C

Helium undergoes usual change it remains a liquid

liquid with stronge properties helium has ks isolated from natural gas by liquifying the other components at 2 temperature under hight temperature

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