Which of these statements is incorrect regarding an atom of the element scandium?
a. it has 21 negatively charged electrons
b. it has 21 positively charged protons in its nuclear
c. it has 21 neutrons in its nucleus
d. its chemical symbol is sc

Which of the following steps is not likely to take place during cellular respiration? (5 points) select one: a. oxygen combines with carbon of simple sugar. b. energy molecule transfers energy to cells. c. simple sugar breaks down. d. energy is used up.