Atoms are blank if it has blank electrons in its outer most energy level.

Which of the following pairs of elements belong to the same groupa. h and he b. li and bec. c and pb d. ga and ge

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine