How many dots are shown in the electron dot diagram for calcium, in group ii and period 4 with 20 protons and 20 electrons? a. four c. eight b. two d. twenty

Select the correct answer from each drop-down menu. daniel and sanya are scientists. daniel is studying whether the increasing frequency of tropical storms is affecting coastal erosion. sanya is investigating whether the discharge from industrial plants has any impact on the ph concentration of freshwater swamps in the surrounding area. which fields of science are daniel’s and sanya’s studies most closely related to? daniel’s field of study is related to science, and sanya’s field of study is related to .

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

Match each statement with the state of matter it describes