The Periodic Table
Who was the first person to organize all of the elements into a table?
Dimitri Mendeleev
Atom are most stable when they have what number of electrons in their outer shell?
8
What is anything that has mass and takes up space?
Matter
What is the name for groups 3-12 on the periodic table?
The transition metals
True or False: Compounds have the same properties as the elements which make them
False
What are the vertical columns on the periodic table called?
Groups
What is the type of bonding that occurs when oppositely charged atoms attract each other?
What is a material made of 2 or more substances that can easily be separated by physical means?
Mixture
Which is the most reactive group of all the elements?
The alkali metals
How many sulfur atoms are found in one molecule of H2SO4?
One
What are the horizontal rows on the periodic table called?
Periods
How many electrons is lithium likely to lose/gain when it creates a bond?
Lose 1
What are the 2 types of substances?
Elements and compounds
Which family has elements that exist as single atoms because they are so stable?
The noble gases
What is it called when something can be hammered or rolled into sheets?
Maleable
How is the current periodic table is organized?
Increasing atomic number
What is a molecule called that has slightly positive and slightly negative ends caused by the unequal sharing of electrons?
Polar
Is Italian dressing a solution, suspension, or colloid?
Suspension
What is the family of elements that combine with metals to form salts?
The halogens
What is it called when something can be drawn into wires?
Ductile
What is the group and period for fluorine?
Group 7A or 17
Period 2
What type of bonding occurs in SO2?
Covalent
What test can you use to determine whether a liquid is a solution or a colloid?
The Tyndall effect
Which family that consists of all radioactive elements?
The actinide series
What is the chemical formula for a compound of magnesium and chlorine? (Hint: Try drawing electron dot diagrams)
MgCl2