Hydrogen. Except H2.
The hybridization of the central atom in NCl3 is sp3.
The central atom in N2O is nitrogen, and its charge is 0.
The central atom in a Lewis structure is usually the least electronegative atom.EDIT:If an atom occurs only once, this atom is most likely to be the central atom (exception is hydrogen, as it can make only 1 bond [1 electron necessary to reach a noble gas electron configuration]). The atom that can form the greatest number of bonds (has the least number of valence electrons) or is the least electronegative (least likely to attract atoms).
The central atom in CH4 is carbon, which has four bonding groups. Each bonding group is a hydrogen atom bonded to the central carbon atom.
The central atom in the molecule CH3NCO has sp2 hybridization.
In a binary molecular compound, the general rule for determining the central atom is to identify the less electronegative element, which usually acts as the central atom. Typically, the more electropositive element, often a metal or a nonmetal with lower electronegativity, is placed at the center. In cases where both elements have similar electronegativities, the atom with the higher group number on the periodic table is usually chosen as the central atom.
3 bonds
a nucleus cant be a central atom. the nucleus is part of the atom. you are probably talking about why certain atoms are central atoms in a molecule and why some arent. the answer to that question is that the more electronegative atom will always appear as a central atom.
The hybridization of the central atom in NCl3 is sp3.
The central atom in N2O is nitrogen, and its charge is 0.
In a binary molecular compound, the atom that is more electronegative is typically the central atom. This central atom will attract electrons more strongly, giving it a partial negative charge, while the other atom will have a partial positive charge.
The central atom in a Lewis structure is usually the least electronegative atom.EDIT:If an atom occurs only once, this atom is most likely to be the central atom (exception is hydrogen, as it can make only 1 bond [1 electron necessary to reach a noble gas electron configuration]). The atom that can form the greatest number of bonds (has the least number of valence electrons) or is the least electronegative (least likely to attract atoms).
The central atom in the molecule CH3NCO has sp2 hybridization.
The central atom in CH4 is carbon, which has four bonding groups. Each bonding group is a hydrogen atom bonded to the central carbon atom.
To predict the hybridization of the central atom in a molecule or ion, you can use the formula: hybridization = (number of valence electrons on central atom + number of monovalent atoms attached to the central atom - charge)/2. This will give you the approximate hybridization state of the central atom based on the number of regions of electron density around it.
Organic substances contain carbon and hydrogen atoms. Organic compounds are formed by bonding carbon and hydrogen atoms. There can be more elements too. An atom can never be organic.
They are not elements, they are ions. A sulfide ion consists only of a single sulfur atom with two extra electrons, giving it a charge of -2. The sulfate ion consists of a central sulfur atom bonded to four oxygen atoms. It too has a -2 charge.