Web Results

Period 2 element


The period 2 elements are the chemical elements in the second row (or period) of the periodic ... Period 2 elements obey the octet rule in that they need eight electrons to complete their valence sh...

What is a noble gas with two electrons? | Reference.com


Helium is a noble gas with two electrons. This element is classified as a noble gas because it tends not to form compounds with other...

What is a noble gas with 2 electrons - Answers.com


Helium... that's what i found in chemicalelements.com ... but on my science homework ... What noble gas has the same electron configuration as I? xenon and I- ...

Noble Gases - Shmoop Chemistry


Helium is slightly different than the other noble gas elements. It only has two electrons in its outer shell so its valence electron configuration is 1s<sup>2</sup>. Even though it ...

Noble gases Facts, information, pictures | Encyclopedia.com articles ...


NOBLE GASES CONCEPT Along the extreme right-hand column of the periodic ... gas, though not among this group—usually combine to form a molecule, O2. ... an element is its electron configuration, and the electrons of the noble gases are  ...

Periodic Table - Model Science Software


All alkaline earth elements have an oxidation number of +2, making them very ... All noble gases have 8 electrons in their outer shell, making them stable and ...

Noble Gas | Noble Gas Electron Configuration | Chemistry ...


The first element of this group is Helium that contains only 2 electrons in its valence ... The noble gas are defined as "the group of chemical elements with low ...

Chemical Elements.com - Helium (He)


Boiling Point: -268.6 °C (4.549994 K, -451.48 °F) Number of Protons/Electrons: 2. Number of Neutrons: 2. Classification: Noble Gas Crystal Structure: Hexagonal

The Periodic Table - Science Education at Jefferson Lab


Hydrogen only needs 2 electrons to fill up its valence shell. Alkali Metals ... Noble Gases. Noble Gases are colorless gases that are extremely un-reactive.

Crystal Chemistry - Tulane University


Sep 22, 2014 ... The K-shell can have 2 Electrons, the L-shell, 8, the M-shell 18, N-shell 32. .... completely filled outer electron shells, similar to the Noble Gases.

More Info

Periodic 3 - The Science Spot


1. I am a Noble Gas that is found in the 6<sup>th</sup> period. 2. I am a member of the Alkaline Earth family and have 88 electrons. 3. I am a transition metal that is a liquid at ...

crossword puzzel periodic1


Periodic Table Puzzle Name. 1 2 3 4 .5 _. 6 7 8. 9. 10 11 12. 13. 14 15 ... I have 20 neutrons and am found in your teeth 20, I am a noble gas with 2 electrons.

The Periodic Table - Chemicool


For example, potassium atoms do this to form ions with the same electron configuration as the noble gas argon. Group 2 atoms lose two electrons to form ...