Research Highlights: Land Carbon Sink Strength Expected to be Nearly Half by 2040

Photo by Pixabay on Global photosynthesis and respiration are dependent on temperature. Rainforests normally act as a carbon sink. With the rising temperature, the ecosystem's carbon sink strength may be at risk. Land carbon sink currently mitigates about 30 percent of carbon emission caused by humans. However, it is unclear whether this ecosystem's carbon … Continue reading Research Highlights: Land Carbon Sink Strength Expected to be Nearly Half by 2040

Electronegativity and Bond Type

Figure 1. As the electronegativity difference increases between two atoms, the bond becomes more ionic. Source: OpenStax Chemistry 2e Electronegativity and Bond Type (OpenStax Chemistry 2e) The absolute value of the difference in electronegativity (ΔEN) of two bonded atoms provides a rough measure of the polarity to be expected in the bond and, thus, the … Continue reading Electronegativity and Bond Type

What is Electronegativity?

Figure 1. The electronegativity values derived by Pauling follow predictable periodic trends, with the higher electronegativities toward the upper right of the periodic table. Source: OpenStax Chemistry 2e Electronegativity (OpenStax Chemistry 2e) Whether a bond is nonpolar or polar covalent is determined by a property of the bonding atoms called electronegativity. Electronegativity is a measure of the tendency … Continue reading What is Electronegativity?

Formation of Covalent Bonds

Figure 1. The potential energy of two separate hydrogen atoms (right) decreases as they approach each other, and the single electrons on each atom are shared to form a covalent bond. The bond length is the internuclear distance at which the lowest potential energy is achieved. Source: OpenStax Chemistry 2e Formation of Covalent Bonds (OpenStax Chemistry … Continue reading Formation of Covalent Bonds

Electronic Structures of Cations

Hydrogen atom (center) contains a single proton and a single electron. Removal of the electron gives a cation (left), whereas addition of an electron gives an anion (right). The hydrogen anion, with its loosely held two-electron cloud, has a larger radius than the neutral atom, which in turn is much larger than the bare proton of the cation. Hydrogen forms … Continue reading Electronic Structures of Cations