The element with the lowest atomic number in period 3 is sodium (Na) with an atomic number of 11.
The element that has an atomic number of 36 is Krypton, a noble gas in period 4.
The number of the protons in the nucleus of a chemical element is equivalent to the atomic number; the atomic number define the position of this element in the periodic table (group, period). And from these we can suppose the chemical properties of this element.
Increasing atomic number by 1
Boron
The element with atomic number 85 is astatine, symbol At
it must be 12.
The element that has an atomic number of 36 is Krypton, a noble gas in period 4.
When going left to right across a period, the atomic number of element increases.
you mean atomic number and it is 28
Calcium is a non metal element. Atomic number of it is 20.
From atomic number 55 to 86
copper
Neon (Ne) in the second period on the periodic table of the elements has the highest atomic number in that period of 10.
An element square consists of the element's name, symbol, atomic mass, and atomic number.
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.
The number of the protons in the nucleus of a chemical element is equivalent to the atomic number; the atomic number define the position of this element in the periodic table (group, period). And from these we can suppose the chemical properties of this element.
We can find Polonium as a non metal element. Atomic number of it is 84.