The lewis structure of n2h2 shows
c. each nitrogen has one nonbinding electron pair
Lewis structures are diagrams that show the bonds between the atoms of a molecule and the lone pair of electrons that might exist in a molecule.
Lewis structures can be drawn for each covalently bonded molecule, as well as coordination compounds. The Lewis structure is named after Gilbert N. Lewis, who introduced in his 1916 article The Atom and the Molecule. The Lewis structure extends the concept of the electron point diagram by adding lines between atoms to represent pairs together in chemical bonds.
The Lewis structure shows each atom and its position in the molecular structure using its chemical symbol. Lines are drawn between atoms that are bound to one another (pairs of dots can be used instead of lines). The excess electrons that make up lonely pairs are represented as pairs of points and are placed next to the atom.
The number of electrons represented in the Lewis structure is equal to the number of valence electrons in each atom. Non-valence electrons are not represented in the Lewis structure.
In the case of Lewis structures, formal charges are used in the description, comparison, and assessment of the topological and resonant structures that might occur by determining the apparent electron charge of each atom, based on the structure of the electron points, assuming exclusive covalence or non-polar bonds. Formal charges have been used in determining possible electron reconfigurations when referring to reaction mechanisms, and often produce the same sign as the partial charge of atoms, with the exception.
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Class: High School
Subject: Chemistry
Keyword: lewis, Structure, electron
True
Or False
True. In a chemical change, the same atoms are recombined into a new substances,
In a chemical change, also known as a chemical reaction, the atoms of the reactants are rearranged and recombined to form new substances with different chemical properties.
While the atoms themselves are not created or destroyed, their arrangement and bonding patterns change, resulting in the formation of new molecules or compounds. This process involves breaking and forming chemical bonds, leading to the creation of different substances with distinct properties from the original reactants.
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sulfur
anitmony
selenium
Answer: Option (a) is the correct answer.
Explanation:
Electric current is the flow of electrons and an atom that has free electrons will be able to carry current easily.
Hence, electronic configurations of the given elements are as follows.
Tin (Sn) -
Sulfur (S) -
Antimony (Sb) -
Selenium (Se) -
So, sulfur and selenium being non-metals won't be able to conduct electricity. Whereas both tin and antimony are poor metals but they are able to conduct electricity.
Antimony has half filled p-shell so, it will not lose its valence electrons as it is stable. Whereas tin will easily lose its valence electrons to become stable.
Thus, we can conclude that tin is the element that is most likely to carry electric current easily.
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