Complete each of the following statements for a molecule of H 2 S: c. The number of atoms attached to the central S atom is _______.

Hello. In this problem, we are asked true or false, there are two atoms attached to the central selenium atom and hydrogen selan let's make use of the need available share. So we'll note this says N A need comes about from most elements trying to acquire an octet. One exception is hydrogen, hydrogen will be stable. If it has two, then it's like helium. So in our chemical formula, we have two hydrogens that are trying to acquire two electrons to be stable. And then we have selenium which is trying to acquire an octet. So that's then a total of 12 electrons that we need available comes about based on the number of valence electrons recall that hydrogen is in group one A. So it has one valence electron. Again, we have two hydrogens in the chemical formula and we have then selenium which is found in group six A. So this is a total of eight electrons that are available. The difference between what we need, which is 12 electrons and what's available, which is eight tells us what we'll share, which is four electrons. So selenium will go in the center hydrogen will never go into the center because it will only ever form a single bond. So we're gonna share four. So that's 24 in our two bonds, we need to account for all eight available electrons. So we have four left to account for those remaining four, then go on selenium to fulfill its octet. And so when we look at the structure for hydrogen Cellan, we see that we have two hydrogen atoms attached to selenium. So the answer then to this question is true, there are two atoms attached to the central selenium atom of hydrocele. Thanks for watching. Hope this helped.

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4. Molecular Compounds

Electron Geometry (Simplified)

GOB Chemistry

4. Molecular Compounds

Electron Geometry (Simplified)

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Problem 74c

Textbook Question

Complete each of the following statements for a molecule of H₂S:
c. The number of atoms attached to the central S atom is _______.

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Identify the central atom in the molecule H₂S. In this case, sulfur (S) is the central atom because it is less electronegative than hydrogen and can form multiple bonds.

Determine the number of hydrogen atoms bonded to the sulfur atom. The molecular formula H₂S indicates that there are two hydrogen atoms in the molecule.

Recognize that each hydrogen atom forms a single covalent bond with the sulfur atom. Therefore, there are two atoms (hydrogen) attached to the central sulfur atom.

Verify the molecular geometry of H₂S. Sulfur has two lone pairs of electrons and two bonding pairs (from the hydrogen atoms), resulting in a bent molecular shape, which confirms the bonding arrangement.

Conclude that the number of atoms attached to the central sulfur atom is 2, as there are two hydrogen atoms directly bonded to it.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Molecular Structure

Molecular structure refers to the arrangement of atoms within a molecule, including the types of bonds and the spatial orientation of the atoms. In H₂S, the central sulfur (S) atom is bonded to two hydrogen (H) atoms, which influences the molecule's shape and properties.

Valence Electrons

Valence electrons are the outermost electrons of an atom that are involved in forming bonds with other atoms. Sulfur has six valence electrons, and in H₂S, it shares two of these with two hydrogen atoms, allowing it to form two single covalent bonds.

Coordination Number

The coordination number of an atom in a molecule refers to the number of atoms directly bonded to it. For the sulfur atom in H₂S, the coordination number is two, as it is bonded to two hydrogen atoms, which is essential for understanding its chemical behavior and reactivity.

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