Question

what is the periodic table?
the junk drawer in the figure is full of pens, notebooks, rubber bands, and
other supplies. it would be difficult to find a particular item in this messy drawer.
how might you organize it? first, you might dump the contents onto the
counter. then you could sort everything into piles. items and pencils might go
into one pile. notebooks and papers go into another. organizing the contents of
the drawer makes it easier to find the things you need, also shown in the figure
just as sorting helps to organize the objects in the junk drawer, sorting
can help scientists organize information about the elements. recall that there
are about 118 elements, each with a unique set of physical and chemical
properties.
scientists use a table called the periodic (pih ree ah dik) table to organize
elements. the periodic table is a chart of the elements arranged into rows
and columns according to their physical and chemical properties. it can be
used to determine the relationships among the elements.
explain organize information about the periodic table in the chart below
there are about
118
elements.
scientists use a
to organize
the elements.
the periodic table is
in this chapter, you will read about how the periodic table was developed. you will
also read about how you can use the periodic table to learn about the elements.

Explanation:

The text states that there are about 118 elements. Scientists use a periodic table to organize the elements. The periodic table is defined as a chart of the elements arranged into rows and columns according to their physical and chemical properties and can be used to determine relationships among the elements.

Answer:

There are about 118 elements. Scientists use a periodic table to organize the elements. The periodic table is a chart of the elements arranged into rows and columns according to their physical and chemical properties and can be used to determine the relationships among the elements.