NY Regents Chemistry Practice Questions

5 free NY Regents Chemistry practice questions with worked answers. Tap an option to check your answer and read the explanation — then get a personalized study plan.

Question 1Subatomic Particles

What is the number of protons in an atom with the electron configuration of 2–5?

Question 2Subatomic Particles

In the wave-mechanical model of an atom, an orbital is defined as

Question 3Electron Configuration

In the ground state, which shell of a potassium atom has an electron with the greatest amount of energy?

Question 4Isotopes & Atomic Mass

Which phrase describes two atoms that contain the same number of protons but a different number of neutrons?

Question 5Subatomic Particles

All atoms of an element have the same

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