Chemical Properties
What is the difference between a chemical and a physical property?
Chemical properties are typically only observable when elements react, while physical properties can be seen or observed without changing the substance
A metal is very dense compared to other metals. Which family does it likely belong to?
Transition metals
What is a valence electron?
An electron in the outer shell of an atom
What is a family on the periodic table?
A group of elements with similar properties
The most reactive metals come from what family?
Alkali metals
An element has a very low melting point - it's only a few degrees above room temperature. Which family does it likely belong to?
Post-transition metals (half points if you guessed alkali metal)
How many valence electrons (in the outer shell of the atom) do alkali metals have?
1
What is a period on the periodic table?
Row that goes across the table
How reactive an element is depends on the number of...
Valence electrons
An element is soft & easily cut with a knife. Which two families could it likely belong to?
Alkali metals or alkali earth metals
How many valence electrons (in the outer ring) do alkali earth metals tend to have?
2
What is a group on the periodic table?
Column that goes up & down
Oxygen
An element reacts to form a colorful new compound. Which family does the original element probably belong to?
Transition metals
Transition metals & post-transition metals
What is the periodic table?
A way to organize elements according to their properties
When an element reacts with oxygen, what is the process called?
Oxidation
The two families of metals with the lowest densities are...
Alkali metals & alkali earth metals
Which two families of metals tend to lose their valence electrons?
Alkali metals & alkali earth metals
What is reactivity?
How likely an element is to have a chemical reaction with other elements