Question

choose all that are correct.
a neutron...
...has a mass of 1 gram.
...has a mass of 1 amu.
...has a charge of 1+.
...is located in the nucleus.
...has a charge of 1-.
...is located in the empty space surrounding the nucleus.
...a negligible mass.
...has no charge.

Explanation:

• A neutron's mass is approximately 1 atomic mass unit (amu), not 1 gram (1 gram is much larger, and subatomic particles have masses in amu or related units).
• Neutrons are located in the nucleus of an atom (protons and neutrons make up the nucleus; electrons are in the empty space around the nucleus).
• Neutrons have no charge (protons have +1, electrons have -1; neutrons are neutral).
• A neutron does not have a charge of 1+ (that's a proton) or 1- (that's an electron), is not in the empty space around the nucleus (electrons are), and does not have a negligible mass (its mass is ~1 amu, significant for atomic mass).

Answer:

-...has a mass of 1 amu.
-...is located in the nucleus.
-...has no charge.