The Periodic Table
Who is the father of the Periodic Table?
Dmitri Mendeleev
BONUS! 500 points!
What is the 1st column on the periodic table (not including hydrogen) called?
Alkali Metals
What group number does oxygen have?
Group 6
This is the only metal that is liquid at room temperature.
Mercury
BONUS! 500 points!
Define malleable.
Able to be compressed, molded, or shaped without breaking.
Where would you find nonmetals on the periodic table?
To the right of the black staircase! (Groups 3-8)
List two characteristics of transition metals
Good conductors, ductile, malleable, high luster
Which family has a full valence shell?
Noble gases
BONUS! 500 points!
This element is found in your teeth and bones
Calcium
Define ductile.
Able to withstand "tensile" (or stretching) force.
What are the vertical columns called?
Groups, Families (1-18)
What is group 2 called?
Alkaline earth metals
BONUS! 500 points!
Which family has elements that are solid, liquid, and gas at room temperature?
Halogens!
This element tries to steal an electron from almost ANY other atom, and thus is highly explosive and rarely found by itself.
Fluorine
Why are transition metals good conductors?
Transition metals are generous. They have free-floating ("delocalized") electrons that can easily be turned into a free-flowing river. When electrons all flow in the same direction, it creates electricity.
Elements are put into rows by increasing _____
Atomic Number
What is group 7 called?
Halogens
Give 2 properties of the nonmetals family.
They are poor conductors, brittle, and usually dull (if a solid). They also compose most of the food we eat!
Why is silicon used in electronics?
It is a semiconductor, allowing us to control when it can conduct electricity.
Why are alkali metals stored under oil? Be specific!
They are highly reactive, due to their 1 valence electron. They will start to react with the oxygen in the air if exposed.
They have the same number of valence electrons, which causes them to have similar properties!
What family does Boron fall into?
Metalloids
Inert (not reactive at all)
Monatomic (exist as single atoms)
Colorful (if electricity is passed through them)
These two elements make up salt that you put on steak.
Sodium, Chlorine
What does the word "diatomic" mean and which family tend to form diatomic molecules?
It means "2 atoms." The halogens tend to form diatomic molecules in order to gain greater stability.