The Periodic Table

The Periodic Table of the elements in a list of all known elements in order of increasing ___________?

• atomic number

• mass number

• element number

• neutron number

A vertical column in the periodic table of the elements is called a group. What is a horizontal row known as?

What name is given to Group 1 of the periodic table?

• noble gases

• alkaline earth metals

• alkali metals

• halogens

The alkaline earth metals (e.g. Be, Mg etc) have ___________ electrons in their outer shell.

• 1

• 2

• 3

• 4

The noble gases (group *) are also called the inert gases beacuse

• They are unreactive

• They are very reactive

• They are all metals

• They are found in large amounts in the air

The group that an atom is in tells us how many electrons it has in its outer shell. e.g Group 1 has 1 electron in its outer shell, while group 7 have 7 electrons. Use this information to predict how many Sodium (Na) atoms are needed to combine with one Chlorine (Cl) atom

The group that an atom is in tells us how many electrons it has in its outer shell. e.g Group 1 has 1 electron in its outer shell, while group 7 have 7 electrons. Use this information to predict how many Hydrogen (H) atoms are needed to combine with 1 Carbon (C) atom

What is the name given to an atom which has lost or gained electrons?

Based on its location on the periodic table, which of these elements most likely has physical and chemical properties most similar to boron (B)?

• magnesium (Mg)

• aluminum (Al)

• neon (Ne)

• chlorine (Cl)

Find the element in Period 3 and Group 7. What is

this element’s chemical symbol?

• F

• Br

• Cl

• I