they go by there Atomic Mass's
The term for a pattern that repeats isotopic metallic periodic or transition is "periodic table."
The properties of elements that follow a pattern that repeats every eight elements are known as the periodic properties. These properties include atomic radius, ionization energy, electron affinity, and electronegativity, which exhibit periodic trends across periods (rows) in the periodic table.
It is The Periodic Table of Elements
Groups of the Periodic Table of Elements.
groupsi
A row of elements across the periodic table is called a period. Periods represent the number of electron shells in an atom.
A repeating pattern
because the no. of shells in the atoms across the Periodic Table remains the same
Across a period, as we move from left to right, the electronegativity increases in the periodic table.
Maybe there is no pattern...no it fals
A horizontal row on the periodic table of elements is called a period.
Electronegativity increases as you move across the periodic table from left to right.