Answer:
The total charge on nucleus = 1.12 x10 ⁻¹⁸C
Step-by-step explanation:
Atomic Structure: Atom is the smallest particle of an element.
it consists of Two portion i.e. orbitals and Nucleus
- orbitals have particles called electrons
- nucleus have neutrons and proton in it
The electron have -ve charge
proton have +ve charge
neutrons have no charge at all
So
Atomic Number : The number of electrons or proton (number of electrons equal to the number of proton in an atom of element)
Atomic Mass: atomic mass is the number of proton plus neutron in the nucleus.
Now keeping in mind
- The charge of the electron is equal to the charge of proton
- There is a total positive charge on the nuleus but net charge is zero of the atom
- The positively charged nuetrons cancel out the -ve charge of electrons.
Nitrogen have Atomic number 7 and atomic mass is 14
so it have 7 electron in its orbital
So for the total charge on the nucleus with electrons in atom is zero
but if we ignore the electrons in the atom
then we can calculate the charge on nitrogen atom is as follow:
value of charge on proton = 1.602×10 ⁻¹⁹ C
number of proton in Nitrogen nucleus = +7
so the total charge on nucleus = +7 x 1.602×10 ⁻¹⁹ C = 1.12 x10 ⁻¹⁸C
total charge on nucleus = 1.12 x10 ⁻¹⁸C