A Lewis structure, also known as a Lewis dot structure, is a diagram that depicts the bonding between atoms in a molecule and the lone pairs of electrons that may exist. It was developed by the American chemist Gilbert N. Lewis in 1916. In a Lewis structure: 1. **Atoms** are represented by their chemical symbols (e.g., H for hydrogen, O for oxygen, C for carbon). 2. **Valence electrons** are represented as dots around the atomic symbols.

Lanthanide contraction refers to the phenomenon where the atomic and ionic radii of the lanthanide series elements (the 15 elements from lanthanum (La) to lutetium (Lu) in the periodic table) decrease progressively with increasing atomic number, despite the addition of electrons to the 4f subshell. This contraction is primarily caused by the ineffective shielding of the increasing nuclear charge by the 4f electrons.

The Keating Model, often referred to in educational contexts, is associated with the work of Dr. John Keating, a fictional character from the movie "Dead Poets Society" portrayed by Robin Williams. This character embodies a teaching philosophy that emphasizes the importance of individual thought, creativity, and the pursuit of passion in education.

Isovalent hybridization is a concept in chemistry that refers to the mixing of atomic orbitals of equal energy to form new hybrid orbitals that can participate in chemical bonding. The term "isovalent" indicates that the hybrid orbitals formed have similar energy levels and characteristics, which allows them to effectively engage in bonding with other atoms. In isovalent hybridization, the orbitals involved in the hybridization process typically belong to the same type or category (e.g.

Ionic bonding is a type of chemical bond that occurs when atoms transfer electrons from one to another, resulting in the formation of charged particles known as ions. This transfer typically occurs between atoms of significantly different electronegativities, such as metals and non-metals.

Open source MtG engine implementation written in Java.

Seems to have an option to download art from internet as well.

Ciro Santilli wonders how legal it is. They very explicitly do not mention the words Magic: The Gathering anywhere.

Their UI does a good job at being self explanatory. Space is the shortcut to skip phases.

No online play.

TODO it appears to parse card functionality out of the human readable text! That's genius, as it helps automatically get new cards working, and squirt around legal issues.

The non-regular version of the hypercube.

An intimate ion pair refers to a specific type of ion pair formed in solution, particularly in polar solvents like water. It is characterized by the close association of a cation and an anion that are not fully separated by solvent molecules. In this context, "intimate" indicates that the ions are in close proximity, potentially influencing each other’s properties and reactivity.

As of my last knowledge update in October 2021, there is no widely known figure or notable individual by the name of Dmitry Sychugov. It's possible that he could be a private individual, an emerging figure, or someone who has gained prominence after that date.

The hydrophobic effect is a phenomenon in which nonpolar substances aggregate in aqueous solutions, minimizing their exposure to water. This effect is a key principle in biology, particularly in the folding of proteins and the formation of cellular membranes. ### Key Points: 1. **Nonpolar vs. Polar Molecules**: Water is a polar solvent, meaning it has a partial positive charge on one end and a partial negative charge on the other.

A unique projective space can be defined for any vector space.

The projective space associated with a given vector space $V$ is denoted $\mathbf{P}(V)$.

The definition is to take the vector space, remove the zero element, and identify all elements that lie on the same line, i.e. $\vec{v}=\lambda \vec{w}$

The most important initial example to study is the real projective plane.

Michael Hochberg is a name that could refer to multiple individuals, but one prominent figure is a theoretical biologist known for his work in evolutionary dynamics, population genetics, and the study of biodiversity. He has made significant contributions to understanding the interactions between evolution and ecology, particularly concerning the dynamics of infectious diseases and ecological systems.

A hydrogen bond is a type of attractive intermolecular force that occurs between a hydrogen atom covalently bonded to a highly electronegative atom (such as oxygen, nitrogen, or fluorine) and another electronegative atom. In this interaction, the hydrogen atom carries a partial positive charge due to the difference in electronegativity between itself and the atom it is bonded to.

The hydration number, often referred to as the hydration number or hydration shell, is a concept in chemistry that describes the number of water molecules that surround a given ion or molecule in solution. This number is important because it provides insight into the interactions between solutes and solvents, affecting solubility, stability, and chemical reactivity. The hydration number can vary based on several factors, including the size and charge of the ion or molecule, the concentration of the solution, and the temperature.

A **halogen bond** is a type of non-covalent interaction that occurs between a halogen atom (such as fluorine, chlorine, bromine, or iodine) that acts as an electrophile and a nucleophile. This interaction is similar in nature to hydrogen bonding, but instead of a hydrogen atom being involved, it specifically involves halogen atoms.