Beryllium or Be is the smallest of group two. you can find atomic radius by: the farther down you go the higher it is lowest is at top and then goes to the right. so the top five lowest atomic radius are in order; He, Ne, F, O, N.
chlorine
It is krypton as it the far most right on the periodic table, having the smallest radius
Potassium is the period four element with the lowest mass; its average mass is 39.0983amu.
Co
Kr fourth period means the fourth horizontal row on the periodic table....so the element on that row with the highest atomic number is Kr
Sodium has the largest atomic size in the third period.
It is krypton as it the far most right on the periodic table, having the smallest radius
Fluorine
In a given period, the element with lowest atomic mass will belong to group 1. It should also be noted that lithium is the metal with the smallest atomic mass.
Presumably because atomic number is the fundamental characteristic for organizing the periodic table itself. Every element in the interior of a period of the periodic table has an atomic number greater by 1 than its neighbor to the left and less by 1 than its neighbor to the right; every element (except hydrogen) at the left end of a periodic table period has an atomic number greater by one than the rightmost member of the preceding period; and every element at the right end of a periodic table periodic has an atomic number less by 1 than the leftmost element in the succeeding period, if such a succeeding period exists.
the Atomic number on Periodic Table is the identity of an element in the table , it gives the indications about Group, period and Block of elements it also predicts the chemical and physical properties of the element.
Neon element in the periodic table period 2 has most mass.It has atomic mass of 20.17.It is colorless and odorless.
Lithium(520)
Potassium is the period four element with the lowest mass; its average mass is 39.0983amu.
Zn is the atomic symbol for the element Zinc.
The atomic number increases one-by-one stepping to the right (within a specific period) in the periodic table.
The elements with the smallest atomic radii are found in the top of the P block of the periodic table. Helium (He) has the smallest atomic radius. Francium, on the other side of the periodic table (very bottom of the S block), has the largest atomic radius.
the Atomic number on Periodic Table is the identity of an element in the table , it gives the indications about Group, period and Block of elements it also predicts the chemical and physical properties of the element.