Periodic Table
Atomic Model
Chemical Families
Building Molecules
Structures and Properties
100
Symbol for Carbon
C
100
What has a neutral charge?
Neutrons
100
A group of elements that have similar properties
Chemical family
100
What is the symbol for water?
H20
100
Are electrons close to the nucleus tight or loose?
tight
200
Atomic number for Ca
20
200
Which two numbers are the same in an atomic model?
protons and electrons
200
What are the three chemical families?
metal, nonmetals, metalloids
200
How many valence electrons does oxygen have? Draw the dot diagram for it.
6, 0 with 6 dots around it
200
Are electrons on the 4th energy level tight or loose?
loose
300
Atomic mass for Ag
108
300
What are on the inside and the outside of the nucleus?
Protons, neutrons - inside Electrons - outside
300
electrons on the outermost energy level of an atom
valence electrons
300
How many valence electrons does Carbon have? Draw a dot diagram.
4, a C with 4 dots around it.
300
If and element has 8 electrons on the 2nd energy level, is it stable or reactive?
stable
400
Atomic number and atomic mass for Bi
83, 209
400
How many electrons are in the first, second, and third energy level?
2, 8, 8
400
Draw an electron model of a carbon atom
2 in the first ring, 4 in the second ring
400
What does the dot diagram look like for H20?
H 0 with 6 dots around it H
400
Is an element with 2 electrons on the third energy level stable or reactive?
reactive
500
Symbol, Atomic Number, Atomic mass for Tungsten
W, 74, 184
500
How many protons, neutrons, and electrons does nickel have?
28, 31, 28
500
Draw the electron model for silicon. How many valence electrons does it have?
2 in the first, 8 in the second, 4 in the third
500
What is the dot diagram for CH4
C with eight dots around it and four H's
500
How many valence electrons does Neon have? Is it reactive or stable?
8 Stable
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