The correct answer is option bromine.
Halogen are the non metallic elements found in the group seventeen of the periodic table. They are just one electron less to gain noble gas configurations. The members of the group are fluorine, chlorine, bromine, iodine and astatine.
Where as potassium and calcium are metals of group 1 and group 2 respectively. vanadium is a transitional metal. And gallium is a metal found in group 13.
the mass of the cathode increases because ions from the solution get reduced to atoms and become part of the cathode.
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question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?
answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do
explanation: if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.
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