Get Get Organized Periodically Answer Key

periodic Table. a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.

The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups. Groups are labeled at the top of each column.

How is the modern periodic table organized? In the modern periodic table, elements are arranged by increasing atomic number (number of protons). Properties of elements repeat in a predictable way when atomic numbers are used to arrange elements into groups.

Beryllium is a chemical element with symbol Be and atomic number 4. Classified as an alkaline earth metal, Beryllium is a solid at room temperature.

The elements are arranged in order of increasing atomic number across a period from left to right, so each element has one more proton in its nucleus compared to the preceding one. The properties also change across a period – that's why metals are on the left, and non-metals on the right.

The periodic table is organized into groups (vertical columns), periods (horizontal rows), and families (groups of elements that are similar). Elements in the same group have the same number of valence electrons. Meanwhile, elements in the same period have the same number of occupied electron shells.

The periodic table is organized into groups (vertical columns), periods (horizontal rows), and families (groups of elements that are similar). Elements in the same group have the same number of valence electrons. Meanwhile, elements in the same period have the same number of occupied electron shells.