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Intro to Chem
The Scientific Method
Units of Measurement
Electron Configuration of Atoms
Periodic Table and Trends
100
Anything that takes up space and has mass.
What is matter?
100
The process that researchers use to carry out their experiments.
What is the scientific method?
100
liter
What is the SI unit for volume?
100
n
What is the symbol for the principle quantum number?
100
What is the number of protons in the nucleus called?
nuclear charge
200
Mass/Volume
What is the formula for density?
200
Observation
What is the first stage of the scientific method?
200
Meter (m)
What is the SI unit for distance?
200
+1/2 or -1/2
What are the possible values for spin?
200
shielding effect
The number of electrons held between the nucleus and its outermost electrons
300
Alters the basic chemical properties of a substance.
What is a chemical change?
300
Quantitative observations use measurable numbers and data. Qualitative observations aren't measurable and are based on sensory inputs.
What are the two kinds of observations and what are they?
300
Second.
What is the SI unit for time?
300
azimuthal quantum number
What determines the ‘shape’ of the electron wave?
300
How do atomic sizes increase?
Top to bottom
400
Does not alter the identity or chemical properties of the substance.
What is a physical change?
400
2.54cm=1in
What is the cm to inch conversion?
400
amp
What is the SI unit for the strength of an electrical current?
400
How do you tell if the spin cancels out?
Add spin quantum numbers
400
2
How many more energy levels does Sodium have than Hydrogen?
500
What is the law of definite composition?
Compounds are made by combining atoms of two or more elements in definite porportions by mass.
500
Système international d'unités
What does SI stand for?
500
Candela
What is the SI unit for brightness?
500
What do you call it when electrons are alone in an orbital?
paramagnetic
500
235pm
What is the atomic radius of Cesium?