Periodic Table
Most elements found on the left side of the Periodic Table are___________________!
Metals
You left your water in the freezer for too long; it's frozen. It has now experienced a Chemical Change.
False.
Cu
COPPER
The nucleus is made out of 3 subatomic particles
protons, neutrons, and electrons
The Periodic Table has 18 columns called __________ or families
Groups
The only compound you can drink while in a science classroom - must be in answered in it's chemical formula
H2O
Can be easily reversed.
Physical Change.
H2O
Water
The atomic number tells you the number of what?
What is the number of protons
The elements found on the right side of the Periodic Table are __________________!
Nonmetals
What is a compound?
A substance that has one or more elements chemically bonded together.
Energy is given off or absorbed.
Chemical Change.
Gold
Au
A substance made up of one type of atom
What is an element
The Periodic Table has 7 rows of elements called ___________________ (not to be confused with punctuation).
Periods
Which is not a compound?
Water (H2O)
A Gold Nugget (Au)
Carbon Dioxide we breath out (CO2)
Au - A Gold Nugget
Is Alka-Seltzer and water an example of a physical change?
What is NO? When you mix Alka-Seltzer and water, bubbles form, which indicates a chemical change as taken place.
Carbon
C
Elements CAN or CANNOT be changed into simpler substances?
No, It cannot
Elements that have characteristics of both metals and nonmetals, and are solid at room temperature.
Metalloids
The first element on the Periodic Table
Hydrogen
Name the two indicators of a chemical change.
What are color change, bubbles, temperature change?
Cl
Chloride
Compounds CAN or CANNOT be broken down into simpler substances
Yes, it can