Hesi a2 e ntrance Study guides, Class notes & Summaries

A mystery element has 6protons,6 electrons and 6neutrons.What is its atomic number? • 6 • 12 • 18 • Not enough information The correct answer is A. An atom can always be identified based on the number of protons which will always be the same for atoms of the same element. The atomic number is always equal to the number of protons. • Amysteryelementhas13 protons,13 electrons and 14neutrons.What element is it? • Fe • Zr • Al • Notenoughinformation The correct answe...