Chemistry - Halogens and Noble Gases

Periods

horizontal rows on the periodic table are called ____________

Groups

Vertical columns on the Periodic Table; Elements have the same number of valance electrons and chemical characteristics in common

Families

Groups of elements that share many similar physical and chemical properties; are classified into 8 different sections on the Periodic Table

metals, nonmetals, or metalloids

Elements that share some similar properties (mostly physical); are classified as either __________

Alkali Metals

• Group 1

• 1 Valence Electron

• Most reactive family

• Never found pure in nature

• Shiny and light weight

• Malleable (bendable)

• Not safe for humans to touch

Alkaline Earth Metals

• Group 2

• 2 valence electrons

• Reactive, but not as reactive as the Alkali Metals.

• Silver colored, more dense than alkali metals

• Good conductors

• When burned, each elements gives off a different color

Transition Metals

• Groups 3-12

• Properties vary

• Hard, strong, shiny metals

• Reactive

Halogens

• Group 17

• 7 valence electrons

• Poisonous

• Poor conductors

• Reactive non-metals

Noble Gases

• Group 18

• 8 Valence electrons

• Colorless, tasteless, odorless gases

• Unreactive

Hydrogen

• is a very special element of the periodic table and doesn't belong to any family.

*sits in Group I, but it is NOT an alkali metal, it is a nonmetal

Actinides

• Unstable and radioactive metal

• Man made

Actinides

Noble Gases

Halogens

Alkaline Earth Metals

Transition Metals

Alkali Metals

Alkali metals

Soft metals, highly reactive, especially with water

transition metals

good conductors of heat and electricity, shiny, able to be made into wires and sheets, durable

alkaline earth metals

somewhat hard, quite reactive metals. Good conductors.

Metalloids

brittle, conduct electricity under some conditions, somewhat shiny. Have some properties of both metals and nonmetals.

Halogen

the most reactive nonmetals, frequently react with group 1 to form salts

Noble gases

odorless, colorless gases that almost never react (inert)

Actinides

all man-made (not found in nature), radioactive

Families/ Groups

A vertical column of elements on the periodic table

Periods

A horizontal row of elements in the periodic table

Metals

To the left of the "staircase", shiny, good conductors of heat and electricity

Nonmetals

To the right of the "staircase" plus Hydrogen; dull, brittle, may be solids, liquids or gases at room temperature

Nonmetals are found on the _____ side of the periodic table.

right

Metals are found on the _____ side of the periodic table

left

Metalloids are found ________________

between metals and nonmetals, on the zigzag, B-T and G->P

Is Bromine a Halogen?

Yes it is

What group is a inert?

noble gases

How many valence electrons do alkaline earth metals have?

2 valence electrons

What kind of metal is iron?

Iron is a transition metal

What gas is Krypton?

Its a noble gas

What is the most reactive group?

Alkali

How many valence electrons do Halogens gave?

7 valence electrons

Which group is Calcium a part of?

Alkaline earth metals

Which group is Sodium a part of?

Alkali metals

Which of the following is the most reactive group of non-metals?

Halogen

What is the charge of halogens?

-1

What is the charge of noble gases?

They are neutral

What group are Halogens most reactive with?

Alkali metals

What elements do gases combine with?

The Noble gases rarely combine with other elements

Halogens are?

Solid, liquids , and gases