Periodic Table
How many letters are chemical symbols usually?
One or two letters
What unit is used to measure the mass of an atom?
Atomic mass unit (amu)
This common metal is used to make aluminum foil.
Aluminum
On a scale of 1-10 how cool is Mr H?
10
Metalloids have properties of both ____ and ____.
Metals and non metals
What language are some chemical symbols in ?
Latin
Of the three: Protons, neutrons, and electrons. Which has the smallest mass?
Electrons
These elements are usually dull and break easily.
What does Periodic mean?
Re[eating pattern
Boron, silicon, and arsenic all belong to this group.
Metalloids
How many rows are there in the table?
7
What is it called when you find the total mass of the protons and the neutrons?
Mass number
Most metals are found on this side of the periodic table.
Left side and center
What is a group in the periodic table?
Vertical column of elements on the periodic table
Is iron a metal, nonmetal, or metalloid?
Metal
Who listed the elements in order of increasing atomic mass?
Dimitri Mendeleev
If an atom has 6 protons and 6 neutrons, its atomic mass is roughly ____.
12
Nonmetals do not conduct heat or electricity well. They are called ____ conductors.
Poor
What is a chemical symbol ?
Shortened name of writing an element
Is oxygen a metal, nonmetal, or metalloid?
Non metal
What does each period start with and end with?
Starts with a solid and ends with a gas.
What formula would you use when finding the number of Neutrons in an element.
Mass number - atomic number = number of neurtons
Metals are good at carrying this energy through wires.
Electricity
What is Atomic Mass?
Metalloids are important in electronics because they can control electric current. This makes them good _____.
Semiconductors