HESI ENTRANCE EXAM COMPLETE QUESTIONS AND ANSWERS 2024 VERIFIED 100% | RATED A+

HESI ENTRANCE EXAM COMPLETE QUESTIONS AND ANSWERS 2024 VERIFIED 100% | RATED A+ What are the most abundant elements of the human body? - AnswerCarbon, Hydrogen, Oxygen, Nitrogen 90% of the human body is composed of just four elements which are: - AnswerCarbon, Hydrogen, Oxygen, Nitrogen The smallest unit of an element that still retains the chemical and physical properties of the element is called: - AnswerAtom Subatomic particles are: - AnswerProtons (positive), Neutrons (neutral) and Electrons (negative) All matter is composed of basic substances called - AnswerElements An atom that tells you how many protons an atom has is called: - AnswerAtomic Number The number of protons and neutrons is called: - AnswerMass Number What is isotope? - AnswerThe same element but different number in protons and neutrons-Mass Number (protons plus neutrons) minus Atomic Number (number of protons) equals the number of neutrons. What is radioactive isotope? - AnswerAtom whose nucleus undergoes degeneration and in the process gives off radiation