4 мая 2024 г. · Helium would have 8 electrons in its valence shell if it had 8 protons to accompany them. but then it would be oxygen, not helium. An s orbital ... How does helium have two electrons in its outer shell ... - Quora How many electrons does each helium atom have in its outer ... How can helium be a noble gas when it only has 2 valence ... What does it mean to have a full outer shell? What makes it full ... Другие результаты с сайта www.quora.com

17 февр. 2015 г. · Helium only has two electrons, both of which fill its "s". It only has one electron shell so it has two electrons on the outside.

a) Hydrogen (H) has 0 inner-shell electron. b) Lithium (Li) has 2 inner-shell electrons. c) Helium (He) also has 0 inner-shell electron.

Only two electrons are present and the last shell is 1s and there are 2 electrons present in it, so the number of valence electrons is 2.

13 окт. 2016 г. · The helium atom has 2 electrons. How did I know this? Well, I looked at the Periodic Table, and saw that for He, Z=2.

A helium atom has two electrons. 1. How many electron shells does a helium atom have? 2. What is this shell ...

1 июн. 2013 г. · Of these inert elements, the helium atom has 2 electrons in its outermost shell and all other elements have atoms with 8 electrons in the ...

1 мая 2019 г. · Helium atoms have two electrons in their outer shell and the other noble gases have eight electrons in their outer shell. This is the ...

18 авг. 2021 г. · Helium has 2 electrons --- both in the first shell (so two valence electrons). Lithium has 3 electrons --- 2 in the first shell, and 1 in the ...