Which of the following statements about neutrons is correct?
Neutrons have no charge and are found in the nucleus of an atom
An atom is built from three sub-atomic particles: protons carry a +1 unit charge, electrons carry a −1 unit charge, and neutrons carry no electric charge.
Protons and neutrons together make up the dense central core called the nucleus. Electrons move in shells around this nucleus; neutrons do not orbit and are not in the outer shells.
The neutron was discovered by James Chadwick in 1932. Its mass is very close to that of a proton (about 1 atomic mass unit), which is why the mass number of an atom equals the sum of protons and neutrons.
Hence, the correct statement is that neutrons have no charge and are found in the nucleus of an atom.
Similar Questions
According to Bohr’s model, electrons revolve around the nucleus in:
Two isotopes of chlorine are present in nature: chlorine-35 and chlorine-37. Which statement best explains their chemical behavior?
What defines two elements as isobars?
Atoms of different elements with different ___________ numbers but the same ______ number are known as isobars.
In Rutherford’s α-particle scattering experiment, the conclusion that most of the atom is empty space was drawn because:
Which statement about mass number is correct?
Which of the following best represents the characteristic properties of isotopes?
Which of the following correctly describes a proton?
Which of the following correctly defines the mass number of an atom?
Imagine a scientist is analyzing an unknown atom and finds it has a mass number of 24 and an atomic number of 12. If the atom gains two neutrons due to a nuclear reaction, what will be its new mass number?
Important Questions from Structure of Atom
- How many moles of He atoms are present in its 20 u mass ?
Which of the following electron transition in hydrogen atom will require largest amount of energy?
A species having 8 electrons in the third shell is very reactive while the other species having 8 electrons in the third shell is very inactive they are :
Which of the following is the general formula for saturated hydrocarbons?
Which one of the following is the average atomic mass of chlorine atom?
