It is arranged such that similar elements with similar preferred bonding arrangements are aligned vertically. This exposes the various s, p, d, and f bonding orbitals for each successive "exterior" shell, and so appears to repeat... hence "periodic".
The horizontal sections of the periodic table are called periods.
The horizontal rows on the periodic table are called periods.
The rows of elements in the periodic table are called periods. There are a total of 7 periods in the periodic table, each representing a different energy level or shell in which the elements' electrons are arranged.
Dmitri Mendeleev first periodic table is called Mendeleev's periodic table. Elements are arranged according to atomic mass.
Mendeleev's periodic table was similar to the modern periodic table in that both are organized by increasing atomic number and have elements grouped according to similar chemical properties. Additionally, both tables have blank spaces where undiscovered elements were predicted to exist.
The elements arranged according to their atomic number in the table are called periodic table.
15 (the 15th column from the left) or also called 5A on some periodic tables.
Because the elements that have similar properties are arranged in groups - or 'periods'.
Periodic table (Mendeleev table) of the chemical elements.
7The Periodic Table has 7 periods and 18 groups.
The Periodic Table for Chemistry is as important as times tables for Maths.
In the periodic table only the chemical elements appear; but tables for isotopes also exist.
118 elements are in the periodic table of elements; some of them are still unnamed (January 2013).
In a column that is numbered 16 on most "extended form" tables or VI(A) on "narrow form" tables.
The periodic table is just ONE table. There are not sub-tables. The periodic table is divided into periods (the horizontal rows of the table) and groups (the vertical columns). As you move horizontally across the table, an increase is the atomic number is seen, along with trends in acidity, bonding behavior, and reactivity. The groups are arranged to contain elements that have similar properties. For example, Group 1 is called the alkali earth metals group; all are light, highly reactive metals. Many more trends and groupings exist.
It is called the Periodic Table of Elements.
It is named The PERIODIC TABLE. The periods being the horizontal rows The groups being the vertical columns.