Periodic Table of Elements

The main groups/families in the Periodic Table are also called ______________.

Los principales grupos/familias de la tabla periódica también se denominan ______________.

• representative elements

• alkali metals

• transition metals

• periods or series

Metals are found on the ______________ side of the periodic table.

Los metales se encuentran en el lado ______________ de la tabla periódica.

• nonmetals

• left

• right

• metals

What is the organizational system or chart for elements?

¿Qué es el sistema organizativo o organigrama de elementos?

• Atomic weight

• Families

• Periodic table

• Atomic number

What is the name of group number 1?

• halogens

• noble gases

• alkali metals

• alkaline earth metals

A row on the Periodic Table of Elements

• family

• period

• row

• isotope

Which halogen is found in period 4?

• Krypton (Kr)

• Xenon (Xe)

• Bromine (Br)

• Iodine (I)

a unique number for each element that equals the number of protons in an atom of that element

• element name

• element symbol

• atomic number

• atomic mass

Which of the following atomic symbols for bromine is written correctly?

• bR
• BR
• Br
• br

Elements which are shiny, conduct electricity and heat are called

• metal
• nonmetal
• metalloid
• nonexistent

As you move left to right on a row or period what happens?

• Atomic number increases by 1

• Electrons decrease

• Number of shells decrease

• Nothing