Chapter 3 - The Periodic Table and Chemical Periodicity Flashcards
Reactant
The substances that react with each other
Products
The substances formed in the reaction
Balancing by Inspection
1) Write down the chemical formulas of the reactants and product separated by an arrow. 2) Look for the element that appear only once and balance those out first 3) Balance rest as needed 4) Check yo work
Alkaline
Group 1A or 1
- Shiny, soft, low melting point
- Anomalous reaction with O2
- React rapidly with water
Alkaline-Earth Metals
Group 2A or 2
lustrous, silvery
React with O2
Need acid or heat to react
Halogens
Group 7A or 17
Colorful and corrosive
Very reactive
Noble Gases
Group 8A or 18
Colorless Gases
Very low chemical reactivity
Halides
Halogens that reacts with alkali metals
Period
A horizontal rows on the periodic table
Group/Family
A vertical column on a periodic table
Main Groups
The two groups on the far left and the six on the far right are the main groups
Transition Metal Groups
Elements in the group immediately between the Main Group elements in the body of the periodic table
Inner Transition Metal Groups
The 14 groups shown at the bottom of the table containing the Lanthanides and the Actinides
Inert Gases
Gases that doesn’t have much reactivity
Lanthanide Series
Element 57 through 71
Rare-Earth Elements
