are the noble gases of
NCCN cyanogen = Argon
HCN hydrogen cyanide = Neon
thanks
I don't know how to answer this. There are 10 electrons, all bonding electrons in HCN. In the case of F, for example, we say its ion is isoelectronic with Ne; i.e., there are 10 total electrons for Ne and 10 total electrons for F^-. But HCN has ten electrons involved in bonding which doesn't count the inner electrons in C and N. Same problem(?) with NCCN. Certainly HCN and NCCN are not isoelectronic with Ne and Ar. If we count only bonding electrons in the compounds and ALL the electrons in the noble gas, then HCN is like Ne and NCCN is like Ar. I don't know if this is any help or not but it's the best I can do. I've never heard of comparing COMPOUNDS to noble gases, only elements and/or ions.
To determine if the noble gases of NCCN (cyanogen) and HCN (hydrogen cyanide) are Argon and Neon, we need to look at their electron configurations.
First, let's analyze the electron configuration of Argon (Ar). Argon has the atomic number 18, which means it has 18 electrons. The electron configuration of Argon is 1s² 2s² 2p⁶ 3s² 3p⁶.
Now, let's analyze the electron configuration of Neon (Ne). Neon has the atomic number 10, so it has 10 electrons. The electron configuration of Neon is 1s² 2s² 2p⁶.
Next, let's analyze the compounds, NCCN (cyanogen) and HCN (hydrogen cyanide).
For NCCN, the central carbon atom and the nitrogen atoms form triple bonds, resulting in a linear structure. Nitrogen has the atomic number 7, so it has 7 electrons. Carbon has the atomic number 6, so it has 6 electrons. The total number of electrons involved in bonding in NCCN is 7 + 6 + 6 + 7 = 26.
For HCN, the hydrogen atom and the carbon atom form a single bond, and the carbon atom and nitrogen atom form a triple bond. Nitrogen has 7 electrons, carbon has 6 electrons, and hydrogen has 1 electron. The total number of electrons involved in bonding in HCN is 7 + 6 + 1 = 14.
Now, comparing the total number of bonding electrons in NCCN and HCN to the noble gases:
- NCCN has 26 bonding electrons involved, while Argon (Ar) has 18 electrons. Therefore, NCCN is not isoelectronic with Argon.
- HCN has 14 bonding electrons involved, while Neon (Ne) has 10 electrons. Therefore, HCN is not isoelectronic with Neon.
Based on this analysis, we can conclude that NCCN and HCN are not isoelectronic with Argon and Neon.
It's worth noting that comparing compounds to noble gases is less common than comparing elements or ions. The concept of isoelectronic species usually refers to having the same number of electrons, either for elements or ions.