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Chemistry
Isotopes
Relative Dating
Absolute Dating
Mystery
100
atomic number
What is number of protons?
100
version of an element with a different mass
What is isotope
100
putting rock layers in order based on surrounding rock layers
What is relative dating
100
rule that states that older layers are below younger layers in sedimentary rock
What is law of superposition?
100
What is the element that you call a boring person?
What is Boron?
200
atomic mass
What is number of protons + number of neutrons
200
Atomic mass of C-13
What is 13
200
A fossil that is characteristic of a specific time period
What is an index fossil
200
Law that states faults or intrusions are younger than existing rock
What is cross-cutting?
200
type of radiation that can be stopped by cement, or alumunium foil.
What is beta decay?
300
electrons in a -1 ion
What is one more than atomic number
300
Number of neutrons in U-238
What is 146
300
Which is older: host rock or included fragments?
What is included fragments
300
The half life of C-14 is 5760 years. How old is a fossil that has experienced 5 half lives?
What is 28,800
300
How many electrons in a +1 H ion?
What is 0?
400
Number of protons in C-14
What is 6
400
Number of neutrons in Mg-28?
What is 16
400
Relative dating rule that states organisms have predictable patterns.
What is faunal succession?
400
How much of a 250 g sample U-238 remains after 1 half life?
What is 125 g?
400
Type of relationship in which the DV decreases with an increase in the IV
What is indirect
500
Number of neutrons in C-14
What is 8
500
What type of radioactive decay occurs in the U-238 decay chain when U-238 produces Th-236?
What is alpha?
500
Law of relative dating that describes how horizontal edges remain at the same relative age until they thin at the edges of a rock formation.
What is lateral continuity?
500
How many half lives have passed if 120 g of a 1800 g sample of C-14 remain?
What is 4 half lives?
500
In an experiment measuring the amount of parent isotope remaining after a given amount of time, what is the dependent variable?
What is amount of parent isotope remaining