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Atomic Theory
Substances & Mixtures
Electron Configuration
Isotopes
Random
100
The number of protons in an atom
What is the atomic number?
100
2 substances chemically combined
What is a compound?
100
This configuration is "abnormal"
What is the excited state configuration?
100
This number is common to all atoms of Calcium.
What is atomic number?
100
What is the formula & units for density?
M/V, g/mL.
200
These particles make up the mass of an atom. Where are they located?
What are protons & neutrons? Location: nucleus
200
2 substances physically combined
What is a mixture?
200
Uses a noble gas as part of the configuration
What is an abbreviated electron configuration?
200
Isotopes of the same element have different numbers of these.
What is number of neutrons and mass number?
200
Always equal to the number of electrons in an atom.
What is the number of protons. Or atomic number.
300
Discovered the nucleus by conducting the gold foil experiment
Who is Rutherford?
300
Trail mix is an example of this kind of mixture. Justify your answer
What is a heterogenous mixture? Trail mix is not uniform throughout, there are numerous separate pieces which are visibly different.
300
Electrons that sit on the outermost principle energy level
What are valence electrons?
300
The weighted average of all the isotopes of an atom and their abundances
What is atomic mass
300
Finding the number of neutrons.
By subtracting the atomic number from the atomic mass.
400
Goes on the top left when writing an element in full chemical notation
What is atomic mass?
400
Calcium and Oxygen chemically bond together to produce Calcium Oxide, CaO. What type of matter is calcium oxide?
What is a compound?
400
This has the capacity to hold a maximum of 14 electrons
What is the f sublevel?
400
An element X has two isotopes. Isotope 1 has mass of 37 with an abundance of 75%. Isotope 2 has a mass of 40 with an abundance of 25%. The average atomic mass of element X is closer to which isotope's mass?
What is isotope 1?
400
What SI base unit would you use to measure the length of a door?
What is meters (m).
500
True or False: Atoms are indivisible. Bonus: Which scientist thought this was true?
False. Bonus: Dalton
500
In order to make bronze, Copper (Cu) is usually blended with a small amount of Tin (Sn). Copper and Tin do not react chemically in the process, producing a uniform, lustrous metal. What type of matter is bronze? Justify your answer.
What is a homogenous mixture? Justification: A misconception here might be that it is a compound. However, Cu & Sn here are PHYSICALLY, not chemically combined ("they do not react chemically") in the process. This uniform blending creates a homogenous mixture.
500
This diagram represents the number of valence electrons in an atom
What is a Lewis dot diagram?
500
By multiplying the abundance and the mass of naturally occurring isotopes and dividing by 100.
How to calculate atomic mass?
500
A flagpole is more likely to be: 6 km, 6 m, or 6 cm
What is 6 m.