Which characteristics both generally decrease when the elements in Period 3 on the Periodic Table are considered in order from l
eft to right? (1) nonmetallic properties and atomic radius
(2) nonmetallic properties and ionization energy
(3) metallic properties and atomic radius
(4) metallic properties and ionization energy
Answer : Option 2) Nonmetallic properties and ionization energy
Explanation : It is observed that the nonmetallic properties and the ionization energy when the elements in period 3 on the periodic table are considered in order from left to right.
Various changes are observed when we move from left to right in period 3 in the modern periodic table like the atomic number and charge on the nucleus increases
, number of valence electrons increases
, atomic radius decreases
, first ionization energy increases
, electro negativity increases except in Ar, elements found on the left are metals and elements on the right are non-metals, so non metallic character increases.
It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope Na-24 (Sodium, atomic number Z = 11, mass number A = 24).
