- In An Atom, Is The Number Of Protons And Neutrons Equal ...
- The Number Of Protons In An Atom Is Equal To A Number Called The
- The Mass Number Of An Atom Is Equal To A. The Number Of ...
In an atom the number of neutron is 58.7%more than that of protons. The number of electrons in a neutral atom is 92. Find out the number of proton,neutrons and mass number and represent the atom with atomic number and mass number.
In An Atom, Is The Number Of Protons And Neutrons Equal ...
- In an atom, what is the number of protons equal to? The number of electrons. The number of neutrons. The sum of protons and neutrons in an atom.
- The mas of an atom is the total mass of the protons and the neutrons of that atom. That is because the mass of an electron is negligible when compared to a proton or a neutron. Since the number of protons and the number of neutrons are equal in stable atoms, the mass number of an atom is approximately equal to twice the atomic number.
Why is the number of protons and electrons equal in an atom?
1 Answer
Actually the proton and electron count of an atom are equal only when the atom is neutral in charge.
The three atomic particles of an atom are the protons, which carry a positive charge, the electrons which carry a negative charge and the neutrons which have no charge. The proton number is always the same as the atomic number for the element.
The protons and neutrons are found in the nucleus of the of the atom and make up the major it of the mass of the atom. The electrons are found in orbitals surrounding the nucleus.
In order for the atom to remain electrically neutral the protons and electrons must balance each other.
Two examples would be Sodium (Na) and Chlorine (Cl)
Sodium has an atomic number of 11 and an amu of 23
Sodium has 11 protons 12 neutrons and 11 electrons.
11 protons - atomic number 11
11 + 12 = 23 the amu
The Number Of Protons In An Atom Is Equal To A Number Called The
Chlorine has an atomic number of 17 and an amu of 35
Sodium has 17 protons 18 neutrons and 17 electrons.
17 protons - atomic number 17
17 + 18 = 35 the amu