Element Names
What is the name of the element with the symbol: Li
Lithium
What is the symbol for: Aluminum
Al
All matter is composed of tiny individual particles called:
atoms
How many protons does Hydrogen have?
1
T/F
A compound is made up of only one type of atom in fixed proportions.
False.
Compound = two or more (74)
What is the name of the element with the symbol: Zn
Zinc
What is the symbol for: Platinum
Pt
The elements are organized in a chart called:
The periodic table
Which elements are needed for water?
2 Hydrogens and 1 Oxygen
H20
false, chemical
What is the name of the element with the symbol: F
Fluorine
What is the symbol for: Iron
Fe
A simple substance is:
formed by just one type of atom
Elements that have similar properties will have the same __________ on the periodic table.
a) atomic mass
b) period
c) group
d) atomic radius
c) group
T/F: Water melting is a chemical change.
False, physical
What is the name of the element with the symbol: K
Potassium
What is the symbol for: Bromine
Br
______are solids whose atoms are arranged in a highly structed way.
Crystals
Give an example of a noble gas:
helium, neon, argon, krypton, xenon, and radon
All atoms of a diamond are made of:
carbon
What is the name of the element with the symbol: S
Sulfur
What is the symbol for: Krypton
Kr
Combustion and oxidation are _____ reactions.
chemical
What causes corrosion?
Many metals, such as iron, oxidize when they are exposed to the elements. This is cause by the oxygen in the air. Iron oxide forms which damages and weakens metal objects.
True or False
All atoms of a chemical element are identical.
True