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Glossary of 8th Grade Chemistry

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What is the symbol for Sulfur?
S
What are four characteristics of a metal?
shiny
good condutors of heat and energy
ductile
malleable
Phosphorus
15
What is the symbol for Iron?
Fe
All atoms of the same element have the same number of what?
Protons
Mg 2+
10

Give the number of electrons in atoms of mercury
80
A(n) what has some properties of both metals and nonmetals?
metalloid
Name the family of Neon
Noble Gas Family
What is the symbol for Hydrogen?
H
The person who is credited for publishing the firs useable periodic table is whom?
Mendeleev
Iron
26
What kind of change occurs when whiteout is used to fix a mistake?
Physical
Give an exaple of an alloy
14K gold
What kind of chane is occurin when gree food coloring is added to water and the water turns green
physical
Name the family of sulfur
Oxygen Family
Give an example of a metal
iron
What kind of change is occuring when table sugar is beint heated to make caramel
Chemical
A pure substance that cannot be broken down into any other substance is called a what?
element
What is the chemical for Ca?
Calcium
What is the symbol for gold?
Au
What is the subatomic particle with a negative charge?
Electron
Neon
20.183
The one with the positive charge is called a(n)...
proton
What is the symbol for Nitrogen?
N
What is the symbol for Magnessium?
Mg
What is the symbol for carbon?
C
What is the symbol for Potassium?
K
The building blocks of matter are called
atoms
What is the symbol for sodium?
Na
Copper
29
What is the symbol for Copper?
Cu
What is the symbol for Lead?
Pb
Calcium
40.80
A cubic centimeter is a unit for measuring what?
Volume
What is the symbol for silver?
Ag
Potassium
39.102
What is a charged particle called?
ion
Give the number of protons in atoms of oxygen.
8
lead
82
The three subatomic particles of an atom are what?
Proton, eletron, and neutron
S 2-
18
Name the family of Chlorine
Halogen Family
Burning leaves is an example of what kind of change?
Chemical
Freezing an what can occur at the same temperature. It just depends on whether heat is being added or taken away~
melting
The columns in a periodic table are called what?
Family
Name the elements in the compound
NaAlO2
The two needs to be under the O
Sodium, Aluminus and Oxygen
Ag2S
Silver and Sulfur
Name the family of lead
Carbon family
New substances are formed during what kind of changes?
Chemical
A physical change changes the what of a substance
appearance
Pull out a periodic table and give the atomic mass of silver.
107.870
What found on a periodic table gives you the number of protons found in each atom of an element?
Atomic Number

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