Does helium belong to p block?

Helium, though being the first element in group 18, is not included in the p-block.

Why is helium located with the noble gases in the p block when helium’s electron configuration is only 1s2?

Helium’s chemical properties are more similar to the p-block noble gases due to its full shell. It is a stable element and does not take place in the chemical reaction similar to the noble gases like Neon, Argon etc. which are there in the p block.

Why is helium expressed as 1s2?

We are thus left with the picture of the helium atom having its two electrons in 1s states, where one electron has its spin “up” and the other its spin “down.” The complete ground state of the helium atom is then denoted by 1s2 , where the ending superscript specifies the number of electrons in the given state (in this …

Why is helium in Group 18 even though it only has 2 valence electrons?

As helium has completed outermost shell it is placed in 18th group. Hence helium is placed in 18th group . It can only hold 2 electrons in its outer most shell. Group 18 are “happy” because they all have full outer shells.

What is the configuration of Helium?

1s2
Helium/Electron configuration

Why is Helium placed in p-block elements although its last electron enters in the S orbital?

Helium is gas like other inert gases unlike solid s block metals. Helium is non- metal while s block contains only metals. Helium is much less reactive like other inert gases unlike s block metals which are most reactive. For all such reasons Helium is placed in inert gases group which lies in p block.

Why is helium considered a noble gas based on its electron configuration?

It only has two electrons in its outer shell so its valence electron configuration is 1s2. Even though it only has two electrons, it is grouped with elements that have eight valence electrons. Helium is still happy because its outermost shell is completely full making it extremely stable.

Why does helium behave as a noble gas?

Back to the question, helium is a noble gas because the first shell can only hold two electrons, so the two valence electrons it has are still considered to be a full shell.

Why is helium placed in P block elements although its last electron enters in the S orbital?

What is the configuration of helium?

Why is helium placed in P block?

Why is helium in column 18?

Helium atoms have two electrons in their outer shell and the other noble gases have eight electrons in their outer shell. This is the maximum number that will ‘fit’ each shell, making the atoms stable. The noble gases are located in the far right column of the periodic table of elements – in group (column) 18.

Why is helium not kept in the s-block?

Good question. Helium is having electronic configuration 1s² that is a configuration of s block element then it should be kept in s block. But it is not placed because of its properties only those match with inert gases. Helium is gas like other inert gases unlike solid s block metals. Helium is non- metal while s block contains only metals.

Where is helium placed in the p-block on the periodic table?

Helium is not placed in the p-block, it belongs to s-block.There are two types of representation for the periodic table of elements- Based on chemical properties (commonly used) Based on electronic configuration( blocks)

Why does helium belong 2D p orbital?

Helium belong 2 d p orbital because 1electron will b place in d s orbital nd d other on d p orbital b4 pairing cn occur 4rm hund’s rule.i.e remember helium cn either b place in group 2 (in d s orbital) or group 8(d p orbital) Helium is a p-block element because it is a non-metal. All non-metals (group3- are p-block elements.

Why is helium 1s2 on the periodic table?

That explains why He is 1s’2 (a duplet inert gas in group . You know the periodic table is in blocks (s, p, d and f) based on where the valence electron lies. Helium has its valence electron in s-subshell but it lies in p-block.

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