PLEASE HELP ME (75 POINTS)

Question 1 (1 point) What is found in the nucleus of an atom?

options: A.electrons B.protons and electrons C.neutrons and electrons D.neutrons and protons


Question 2 (1 point) What is the basic unit of matter?

options: A.cell B.energy C.electron D.atom


Question 3 (1 point) On the period table, the rows are called

options: A.columns B.groups C.periods D.sections


Question 4 (1 point) The atomic number is the number of __________ in an atom.

options: A.groups B.electrons C.protons D.neutrons


Question 5 (1 point) Columns on the periodic table are called

options: A.sections B.rows C.groups D.periods