Which main type of sedimentary rock forms from solutions? chemical
clastic
organic
shale

If the element whose electric configuration ends in the d sublevel, the element is calssified as? a.inner transition b.noble gases c.representative d. transition

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.