Which statement describes the location of 5 protons and neutrons in an atom of helium?

January 2018 NY Regents Chemistry Exam

1 Which statement describes the location of 5 protons and neutrons in an atom of helium?

(1) Protons and neutrons are in the nucleus.

(2) Protons and neutrons are outside the nucleus.

(3) Protons are outside the nucleus, and neutrons are in the nucleus.

(4) Protons are in the nucleus, and neutrons are outside the nucleus.

Solution: Protons and neutrons are always located inside the nucleus. Electrons are located outside the nucleus.

Answer: 1

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