A period is one of the horizontal rows in the periodic table, all of whose elements
have the ... of people are sensitive to beryllium and may develop an inflammatory
reaction in their respiratory sy...
In the periodic table of elements, there are seven horizontal rows of elements
called periods. The vertical columns of elements are called groups, or families.
The horizontal rows in the periodic table are called periods. The vertical ... Are
another name for the horizontal rows on the periodic table of elements? Periods.
On the periodic table, the seven horizontal rows are called periods. ... Moving
across a period from left to right, the atomic number of the elements increases.
Periodic table group. The horizontal rows are called periods. Elements show a
gradual change in properties across a period.
The periodic table shows all the elements and their physical properties; it is
arranged ... The vertical columns (groups) of the periodic table are arranged such
that all its ... Each row of the periodic table is called a period and each column of
The horizontal rows on the periodic table of the elements are called periods.
Every element in a period has the same number of atomic orbitals. For instance ...
The vertical columns on the periodic table are called groups or families. Groups
probably come in most handy when predicting the properties of an element.
All the different elements are arranged in a chart called the periodic table. ... table
: the horizontal rows are called periods; the vertical columns are called groups ...
Periodic table is divided into seven horizontal rows of elements. Each row of
elements is called "PERIODS".All the elements of a period are different from each