Which statement about the atomic nucleus is correct?
a. the nucleus is made of protons and neutrons and has a negative charge.
b. the nucleus is made of protons and neutrons and has a positive charge.
c. the nucleus is made of electrons and has a positive charge.
d. the nucleus is made of electrons and has a negative charge. select the best answer from the choices provided a b c d

Answer : The correct option is, (b) The nucleus is made of protons and neutrons and has a positive charge.

Explanation :

As we know that an atom is the smallest unit of a matter that consist of three subatomic particles which are electrons, protons and neutrons.

The protons and the neutrons are located inside the nucleus or center of the nucleus where the mass of the an atom is concentrated and the electrons are located around the nucleus.

The protons are positively charged, the electrons are negatively charged and the neutrons are neutral that means it has no charge.

Hence, the correct option is, (b) The nucleus is made of protons and neutrons and has a positive charge.

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.