Question

question 2 (mandatory) (2 points)
the nucleus of an atom contains___________.
a) protons only
b) electrons only
c) neutrons only
d) protons and neutrons
e) protons and electrons

Explanation:

Atomic structure basics: protons (positive charge) and neutrons (neutral charge) are in the nucleus. Electrons (negative charge) orbit around the nucleus. Options a, b, c, e are incorrect as they don't represent the correct composition of the nucleus.

Answer:

d) protons and neutrons