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element

a substance that cannot be broken into smaller pieces

atomic number

the number of protons in an element's nucleus

periodic table

the chart that organizes the elements

group

a vertical column of elements in the periodic table. elements in the same group have similar properties.

period

a horizontal row of elements in the periodic table

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Review Questions::



1. Use the periodic table to write the names of the following element symbols:

a. Cu

b. Zn

c. Na





2. What group are the following elements located in?

a. Neon

b. Carbon

c. Lithium





3. What period are the following elements located in?

a. Potassium

b. Silver

c. Magnesium






4. What is the significance of the vertical columns of the periodic table?






Reference link:

www.chemicool.com