Who was the U.S. physicists that carried out experiments to find the quantity of an electron's charge?
100
3+
What is the charge of 3A
100
Periodic Law
What law says that elements when arranged in the order of their atomic numbers show a periodic variation of atomic structure and of most of their properties.
100
Atom
What is the smallest particles of an element that retains its identity in a chemical reaction
100
3 Cm
How many centimeters go into 3 meters
200
Democritus
Who was the Greek philosopher that was among the first to suggest the existence of atoms?
200
2-
What is the charge of oxide ions?
200
Pauli exclusion principle
What principle says that an atomic orbital may describe at most two electrons.
200
Structural formula
What represents the covalent bonds as dashes and show the arrangement of covalently bonded atoms
200
Add 273.15 to the degree
How do you convert Celsius to Kelvin?
300
James Chadwick
Who confirmed the existence of yet another subatomic particles: neutrons?
300
1-
What is Flourine's charge
300
Octet rule
What is general rule states that every atom wants to have eight valence electrons in its outermost electron shell.
300
Extensive Property
What is a property that depends on the amount of matter in a sample
300
2.998*10^8
What is the measurement for light?
400
Ernest Rutherford
Who discovered the plum-pudding model?
400
Cations;anions
Are K and S cations or anions?
400
Hund's Rule
What rule stated that electrons occupy orbitals of the same energy in a way that makes the number of electrons with the same spin direction as large as possible.
400
A base is generally an ionic compound that produces hydroxide ions when dissolved in water
What is a base?
400
0
What is the freezing point of water for Celsius?
500
Eugen Goldstein
Who observed a cathode-ray tube and found rays traveling in the directions opposite to that of the cathode rays?
500
Mg2SO2
What is the formula for magnesium sulfate
500
Dalton's atomic theory
What theory stated that All atoms of the same element are identical; atoms of different elements have different properties
500
Analytical Chemistry
What is the area of study that focuses on the composition of matter
500
1/1000
What is the conversion from decimeter to milliliter?