Where are the metals, metalloids, & non-metals located on the
Periodic Table?
Metals = Left of zig-zagMetalloids = on the zig-zag lineNon-metals = right of the zig-zag
What are the 5 signs that a chemical change has occurred?
1. Color Change2. Gas given off (bubbles)3. Temperature change4. New substance formed5. Fire
Complete the chart listed below:
Sample Chemical Symbol/Formula
Element or Compound
1 H2
2 NaCl
3 N2O
4 ni
5 Al
6 H2SO4
7 fe
Element
Element
Compound
Compound
Compound
Neither
Neither
Does the following picture represent an element or
compound?
Compound
What are 3 properties of metals?
1) Malleable/Ductile2) High Luster
3) Good conductor of electricity
Which of the following substances listed can be separated into
several elements?A) Sulfur B) Neon C) Carbon Dioxide D) Oxygen
C – Carbon Dioxide (it’s a compound)
What is the difference between an element and a compound?
An element is a pure substance; a compound is 2
or more elements chemically combined
Label the following as elements or compounds:NaCl:He:N2SO4:H:cl:OH:
Compound
Element
Compound
Element
Neither
Compound
Carbon is considered an element, while carbon dioxide is considered
a compound. This is because carbon dioxide is –
Made up of 2 elements that are chemically combined
Identify how many elements are in the following chemical formulas:Al:Na2SO4:H2O:C6H12O4:h:
1
3
2
3
0
Use the chart below to determine which sample is a metal, metalloid, or non-metal.
Sample Luster Malleability Conductor? Classification
1 High Yes Conductor
2 High No Semi-Conductor
3 Low No Insulator
4 Low Yes Semi-Conductor
Metal
Metalloid
Non-Metal
Metalloid
When conducting an experiment, Lauren found that when you add Iodine to a
cracker, the cracker changes color. Is this a chemical or physical change? How do
you know?
Chemical Change – color change
Katrina was conducting an experiment with 2 unknown liquids. When she mixed them
together a white solid formed in the beaker. What type of reaction is this? How do you
know?
Chemical Change – formation of a new substance (precipitate)
Label the following as metals, nonmetals, or metalloids:
-When John conducted an experiment on an unknown substance, he found
that when touched w/ electrical wires,the light bulb lit up, it was shiny, and
could be bent w/o breaking
Metal
When conducting an experiment w/ an unknown substance, Will found that when touched with
electrical wires nothing happened, the substance was not shiny, and broke easily. How would you
classify this substance?
Non-Metal
The table shows the properties of three classifications of elements. What are the best headings for
columns A, B, and C?
A) Non-Metals B) Metalloids C) Metals
The table shows the physical properties of four elements. Which
element is classified as a metalloid?
Polonium
When conducting an experiment w/ an unknown substance, Adam found that
when touched with electrical wires nothing happened, the substance was not shiny, and broke easily. How would you classify
this substance?
Nonmetal