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Why can't hydrogen have more than 2 electrons in its valence shell?
Wiki User
∙ 12y ago
If it had more than two electrons it would no longer be hydrogen.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoIt is energetically unfavorable and breaks some fundamental laws of Quantum Mechanics.
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Why doesn't Neon form ions?
Because its outer shell is full of electrons and cant attract anymore to become a negative ion. It cant become a positive ion because it has 8 electron on its outer shell so it would be too hard for another atom to take it
Why cant a third H atom join an H2 molecule to make a H3?
Each hydrogen atom has one electron to share in a covalent bond,H-Hno more electrons to share if a third hydrogen tried to enter this bonding arrangement.
Why cant you live without hydrogen?
hydrogen is a component of water. no water, no life.
Why cant ph5 phosphorus pentahydride exist?
This compound could possibly exist, but it would be very unstable towards decomposition to PH3 and H2. One could propose either an ionic (PH4+H-) or covalent structure for this compound. The covalent structure would involve an expanded valence shell involving d2sp3 hybrid orbitals. For phosphorus, valence shell expansion is usually favored by bonding to electronegative elements such as halogens. Since hydrogen is of similar electronegativity to phosphorus, this covalent structure would not be favored. Concerning the possible ionic structure, the hydrogen atoms bonded to PH4+ have some protic character. Therefore they would readily react with the hydride ion to form H2. If PH5 could be made, it would be stable only at very low temperatures under very high pressures.
What is Lewis dot structure for magnesium oxide?
at. no of sodium= 11 k l m 2 8 1 therefore its valence shell electron = 1 at. no of chlorine=7 k l m 2 8 7 therefore its valence shell electron=7 because there are two chlorine atoms therefore 2* at. no = 2*7=14 therefore its lewis dot structure will be .. .. : Cl .. Mg .. Cl: .. ..
Why cant they hydrogen and electrons move through the cell on their own?
because they need water
Why doesn't Neon form ions?
Because its outer shell is full of electrons and cant attract anymore to become a negative ion. It cant become a positive ion because it has 8 electron on its outer shell so it would be too hard for another atom to take it
Electrons spin in shells around the nucleus The closest shell n equals 1 can contain a maximum of?
i cant answer that sorry
What is the noble gas of cobalt?
Cobalt has 9 valence electrons and generally cant lose 9 electrons to achieve the noble gas configuration.
How can you tell from the periodic table how many outer shell electrons an atom will have?
you cant its inposible just pay attention in class and u will find out.
Why cant carbon form more than a total of 4 bonds?
Because forming more than four bonds would give the atom more than 8 valence electrons
Property you cant determine about an atom from the atomic chart is?
Group numbers tell us that how many electrons an atom contain in its outer shell. Eg. Na11 have 1 electron in its outer shell it means Na belongs to group 1. and so on.
Can turtles eat?
no because it has a shell that is hard and you cant eat the shell because the shell is attached to the turtle
Why cant a third H atom join an H2 molecule to make a H3?
Each hydrogen atom has one electron to share in a covalent bond,H-Hno more electrons to share if a third hydrogen tried to enter this bonding arrangement.
Pcl5 is formed but Ncl5 is not formed why?
NCl5 does not exist bcoz nitrogen atom does not have d-orbitals to accomodate electrons from chlorine atoms and nitrogen cant accomodate more than 8 electrons in its valence shell. so its covalency exists only upto four.... pcl5 exists bcoz phosphorus atom has vacant d orbitals to accomodate electrons and thus pcl5 exists
Can you gargle hydrogen peroxide?
No you cant
Why cant noble gases mix with other elements?
!. Noble gases can be mixed with other gases. 2. Noble gases are unreactive (only a limited number of compounds are known today) because the valence electron shell is completely filled.
