Around how many miles is a light year

Modern atomic theory states that the atom is a diffuse cloud of surrounding a small, dense nucleus. a) electron b) neutron c) proton d) quark eliminate

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic