Thorium (atomic mass 230, atomic number 90) decays by releasing 2 alpha particles to form the isotope

Which of the following statements is false regarding aromaticity? a. the compound must be cyclic b. the compound must be fully conjugated c. the compound must be planar d.the number of electrons in the pi system must satisfy the hückel 4n+2 rule e. the compound must have a neutral charge

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Which type of fossil does this image depict?