Question

The nucleus of an atom is

a. the central core and is composed of protons and neutrons.
b. positively charged and has more protons than neutrons.
C. negatively charged and has a high density.
d. negatively charged and has a low density.​

Answer 1

The nucleus is composed of protons and neutrons. A nucleus usually refers to the central core of something.

Step-by-step explanation:

Answer 2

a. The central core and is composed of protons and neutrons.

Step-by-step explanation:

A nucleus of anything is a central core. The nucleus of an atom is composed of protons and neutrons.

b. is wrong. Except for H, the number of neutrons is always equal to or greater than the number of protons.

c. and d. are wrong. The nucleus is positively charged.