Isotopes Chlorine has an atomic mass of 35.5 -Due to isotopes What are isotopes?
Isotopes Atoms of the same element with the same number of protons but different number of neutrons.
Isotopes Same chemical properties but slightly different physical properties. Why?
Isotopes Chemical reactions only involve electrons. Physical properties depend on the atomic mass. As isotopes only differ in atomic mass but not proton no., they will have slightly different physical properties.
Isotopes Radioisotopes Uses? Some isotopes emit high-energy radiation. Radiation can damage living cells but can be useful if used wisely.
Write an electronic structure of sodium atom Draw its atomic structure 2.8.1 11 p 12 n
Valence Electrons Valence = Outermost Valence shell = Outermost shell Valence electrons Electrons on the outermost shell.
Valence Electrons Chemical property of an element depends on the valence electrons. Elements with the same number of valence electrons have similar chemical properties.
All atoms yearn for a full outermost shell. They will go around gaining or losing electrons to attain a full electron shell (2 or 8 electrons). Once they have attained the full shell, they would have a stable electronic structure.