Which statement describes the distribution of charge in an atom?
(l) a neutral nucleus is surrounded by one or more negatively charged electrons.(2) a neutral nucleus is surrounded by one or more positively charged electrons.(3) a positively charged nucleus is surrounded by one or more negatively charged electrons.(4) a positively charged nucleus is surrounded by one or more positively charged electrons.

The correct answer is:

A positively charged nucleus is surrounded by one or more negatively charged electrons

The explanation:

when:

proton is a positively charged elementary particle that is a fundamental constituent of all atomic nuclei.

neutron is a subatomic particle found in the nucleus of every atom except that of simple hydrogen. The particle derives its name from the fact that it has no electrical charge

electron is a negatively charged subatomic particle. It can be either free (not attached to any atom), or bound to the nucleus of an atom .  

so, , there are positively charged protons and zero-charged neutrons in the nucleus of an atom. Therefore, the nucleus is positively charged, Surrounding the nucleus, the electrons have negative charge. 

Thus, the correct answer is (3): A positively charged nucleus is surrounded by one or more negatively charged electrons is correct.

since electrons are negative the answer is neagtaive

the maximum mass of nh3 is nh3 in grams