Types Of Ballista? Explanation

Ballista The ballista (Latin, from Greek βαλλίστρα ballistra[1] and that from βάλλω ballō, “throw”), plural ballistae, sometimes called bolt thrower, was an ancient missile weapon that launched a large projectile at a distant target. Developed from earlier Greek weapons, it relied upon different mechanics, using two levers with torsion springs instead of a tension prod […]

What Is An Alkyl Group? Uses

Alkyl Group | What Is An Alkyl Group In organic chemistry, an alkyl group substituent is an alkane missing one hydrogen. The term alkyl is intentionally unspecific to include many possible substitutions. An acyclic alkyl has the general formula CnH2n+1. A cycloalkyl is derived from a cycloalkane by removal of a hydrogen atom from a ring and has the general formula CnH2n-1. Typically an alkyl is a part […]

What Is Electronegativity Trend? Example

Electronegativity Trend | What Is Electronegativity Trend? Electronegativity Trend, symbol χ, is a chemical property that describes the tendency of an atom to attract a shared pair of electrons (electron density) towards itself. An atom’s electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged […]