1.
Neutral atoms always have the same number of (3 points) O electrons and protons neutrons and
electron O protons and neutrons Isotopes of the same element always have the same (3 points)
AMU number A-number Z-number The magnitude of the charge on an electron compared to the
magnitude of the charge on a proton is greater is smaller is the sane
Solution
1.
Neutral atoms always have same number of electrons and protons .
Electrons and protons have equal but opposite charge. So neutral atom should have balance of
electrons and protons.
2.
Isotopes of the same element always have the same Z- number.
All isotopes of a given element have the same number of protons in each atom.
3.
The magnitude of the charge on an electron to the magnitude of the charge on a proton is the
same.
Charge on electron is : -e
Charge on proton is : +e
e = 1.6×10 -19
C