Atomic Structure
Periodic Table
Math
Matter
Random
100
In Bohr's model of the atom, these are located in specific orbits around the nucleus.
What are electrons?
100
It is the general trend of ionization energy as you go from left to right across a period.
What is increasing?
100
The independent variable is plotted on this axis.
What is the x-axis?
100
An object that has definite volume but no definite shape is in this phase.
What is a liquid?
100
It is the rule for adding/subtracting significant figures.
The answer should have the same number of decimal places as the number with the least amount of decimal places.
200
It is the subatomic particle that electrons would be attracted to.
What are protons?
200
It is the trend of atomic radius from left to right across a period.
What is decreasing?
200
It is the number 0.00902 expressed in scientific notation.
What is 9.02 x 10^-3?
200
Chicken noodle soup is an example of this type of mixture.
What is a heterogeneous mixture?
200
It is the procedure for diluting an acid.
What is "add acid to water"?
300
This scientist was responsible for discovering the charge of an electron.
Who is Robert Milikan?
300
This trend increases as you move from the top right to the bottom left of the periodic table.
What is metallic character?
300
It is 95 L expressed in centiliters.
What is 9,500 cL?
300
This term refers to substances and mixtures which are in a single phase.
What is a homogenous mixture?
300
This happens to the atomic mass of an element when it undergoes Alpha decay.
What is "decreases by 4"?
400
This scientist's gold foil experiment concluded that atoms are mostly empty space.
Who is Rutherford?
400
It is the number of valence electrons in group 17 of the periodic table.
What is 7 e-?
400
23 degrees Celsius converted to Kelvin.
What is 296 Kelvin?
400
Tarnished silver is evidence of this type of change.
What is a chemical change?
400
Using the volume displacement method, it is the volume of a marble given an initial volume of 20.5mL and a final volume of 24.8mL.
What is 4.3mL?
500
This scientists model was known as the Plum Pudding Model.
Who is J.J. Thomson?
500
He arranged the periodic table by increasing atomic mass.
Who is Dmitri Mendeleev?
500
You must do THIS to the exponents when dividing in scientific notation.
What is subtract?
500
This law upholds that the ratio of the mass of Oxygen in water (H2O) and hydrogen peroxide (H2O2) is 1:2 when the mass of Hydrogen remains constant.
What is the Law of Multiple Proportions?
500
It is the name for the emission of rays and particles by a radioactive material.
What is radioactive decay?
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