The question is not answerable. There is NO central atom in C2H2 (ethyn) and there's NO lone pair. All electrons are covalently shared in pairs: three pairs between C and C, one single pair in each C and H bond.
The VSEPR formula for the compound H½O is AX₂E, where A is the central atom (Oxygen), X is the number of atoms bonded to the central atom (2 hydrogens), and E is the number of lone pairs on the central atom (1 lone pair). This leads to a bent molecular geometry for water.
In VSEPR theory, the "a" stands for the number of atoms bonded to the central atom. It helps determine the molecular geometry by considering the number of bonding pairs and lone pairs around the central atom.
The Lewis structure for AX1E0 is linear, with one central atom (A) and no lone pairs or unshared electron pairs (E). This means that A is bonded to one other atom (X) with a single bond.
angular with 109.5 degree
The Lewis structure of H4 would show each hydrogen atom bonded to the central hydrogen atom. The central hydrogen would have a lone pair of electrons, since each hydrogen atom contributes one electron to the bond.
linear
linear
A molecule with four bonded atoms and no lone pairs on the central atom will have a tetrahedral shape. This occurs when the central atom is bonded to four other atoms, resulting in equal distances between the atoms, leading to a tetrahedral shape due to the arrangement of electron pairs around the central atom.
The lone pair electron region is the place around the central atom where electrons not bonding with another atom can be found. A lone pair of electrons are electrons that are not bonded with other atoms.
electron-group geometry Apex!
The steric number of carbon disulfide is 2. This is because carbon has two bonded atoms (sulfur), and there are no lone pairs around the central carbon atom. The steric number is determined by the sum of bonded atoms and lone pairs around the central atom.
The steric number of NO2 is 3, which is calculated by adding the number of atoms directly bonded to the central atom (N) and the number of lone pairs on the central atom. In this case, the nitrogen (N) atom is directly bonded to 2 oxygen (O) atoms and has 1 lone pair, giving a steric number of 3.
None. The central atom in methanoic acid (HCOOH) is carbon, which has four electrons. One of the electrons is bonded to the lone hydrogen, another electron is bonded to the hydroxide (OH), and the last two are double bonded to the lone oxygen.
The Lewis dot diagram of acetylene (C2H2) consists of two carbon atoms triple-bonded together, each with one hydrogen atom attached. Each carbon atom also has two lone pairs of electrons.
The molecular shape of COS (carbonyl sulfide) is linear. This is because the central carbon atom is bonded to the oxygen atom through a double bond and to the sulfur atom through a single bond, with no lone pairs on the central atom.
In a trigonal pyramidal molecular geometry, there are three atoms bonded to a central atom with one lone pair, giving it a pyramid-like shape. In a tetrahedral molecular geometry, there are four atoms bonded to a central atom with no lone pairs, giving it a symmetrical shape like a pyramid with a triangular base.
The central atom in the Lewis dot structure of nitryl chloride (ClNO2) is nitrogen (N). Nitrogen is bonded to one oxygen atom and one chlorine atom, while the other oxygen atom is bonded to nitrogen with a double bond. The remaining oxygen atom holds a lone pair of electrons.