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Does it Matter?
Examining Isotopes
Atomic Comic
Noble Nukes
Have you forgotten...
100
A mixture where you can see the individual parts
What is heterogeneous
100
Write out the Isotope notation for Oxygen with 10 neutrons.
Symbol - O Atomic number (bottom) - 8 Mass number (top) - 18
100
What are the three types of subatomic particles and their charges and masses?
Protons are +, mass of 1 neutrons are neutral, mass of 1 electrons are negative, mass of 0
100
What are the three types of radioactive particles we studied in class?
What are alpha, beta and gamma
100
Name 3 lab safety techniques
Goggles, apron, no gum, no food/drink, safety shower, eye wash, no horseplay, no running, read all directions, no random lab experiments, alert the teacher for all spills and emergencies, close toe shoes, tie up hair, etc.
200
The two types of pure substances
What are elements and compounds
200
Write out two isotope notations for Carbon, one with 13 neutrons and one with 14 neutrons.
Carbon - 13 and Carbon - 14 both have 6 as their atomic numbers
200
How do you know the number of protons neutrons and electrons in a bohr model?
Protons are the atomic number, neutrons are the mass- protons, and electrons are equal to protons in a neutral atom.
200
Write out an alpha particle and what can be used to block it.
He with atomic number 2 and mass 4, paper can block it.
200
Name 2 types of physical changes
changing phase, tearing, breaking, splitting, mixing, moving, measuring, smelling, etc.
300
Mixing together salt and water til you cannot see the salt would be considered
What is a homogeneous mixture
300
What are isotopes?
Two or more atoms of the same element that have different masses.
300
Draw the bohr model for Carbon.
See the board.
300
Why does the mass of the sample not change after it undergoes beta decay?
Beta particles have no mass!
300
What are three ways you know for sure a chemical change has taken place?
Smoke coming off, fire, gas released, bubbles, unexpected color change, new substance, etc.
400
What type of matter would a gold block be considered
What is a pure substance
400
If you are given a chart of various isotopes for Carbon, how do you find the average atomic mass listed on the periodic table?
Add up the masses of the isotopes and divide by the total number of isotopes. (Find the average!)
400
Draw the Bohr model for Ca.
See the board.
400
In a nuclear power plant, what is the purpose of the uranium decay process?
To produce heat that will heat water to steam, turn a turbine and produce electricity.
400
Which of the following are physical changes? Measuring volume Burning Mixing kool aid into water
What is Measuring volume and mixing kool aid.
500
What is the difference between a mixture and a compound?
Compounds are chemically combined but mixtures can be physically separated.
500
In isotopes, what subatomic particle is allowed to change?
What are neutrons.
500
Which atom has 12 electrons? How many rings will its Bohr model have?
Mg, 3
500
Write out a nuclear decay equation for Uranium - 235 as it undergoes beta and gamma decay.
See drawing on board
500
What are the two types of matter?
What are pure substances and mixtures.