Scientist
Laws
Math
Periodic Table
Isotopes
100
Two points of Dalton's Atomic Theory of Matter
What is 1. All matter is made of atoms, 2. atoms are the same element are identical, 3. Atoms are different elements that combine in different combinations in whole number ratios, 4. Chemical reactions involve the rearrangement of atoms and no new atoms are created or destroyed.
100
The law of definite proportions
What is a ratio by mass of the elements in a compound?
100
For Bromine-80 number of protons number of neutrons number of electrons Atomic number Mass Number
What is 35, 45, 35, 35, 80
100
What is the atomic number of Na?
What is 11?
100
An Isotope is...
What is an atom with the same number of protons but a different number of neutrons of other atoms in the same element.
200
The plum pudding model is attributed to whom?
JJ Thomson
200
The law of multiple proportions.
What is two or more elements form more than one compound than the ratio of two different compounds will be unique to each compound?
200
For Fluorine-19 number of protons number of neutrons number of electrons Atomic number Mass Number
What is 9, 10, 9, 9, 19
200
How many electrons does neon have?
What is 10?
200
What is the symbol for alpha decay that is performed by isotopes.
What is 4 in the top left corner, 2 in the bottom left corner and the symbol He or a
300
The experiment that measured the charge of an electron.
What is the oil drop experiment by Robert Millikan?
300
The law of conservation of mass.
What is all mass cannot be created or destroyed, but rearranged?
300
What is the alpha decay of radium-226
What is alpha particle and radon-222
300
What is the atomic mass of potassium?
What is 39.098 amu?
300
What is the symbol for beta decay?
What is 0 in the top left corner, -1 in the bottom left corner and the letter e
400
Alpha and beta particles were discovered by which scientist?
Who is Ernest Rutherford?
400
If you add 5.6 grams of Na to 3.5 grams of Cl how much NaCl would you expect to have.
What is 9.1 grams?
400
Calculate the atomic mass of copper if copper has two isotopes. 69.1% has a mass of 62.93 amu and the rest has a mass of 64.93 amu.
What is 63.546 amu
400
How do you find the mass number?
What is protons + neutrons
400
What does the number in the left top corner represent?
What is mass number
500
The materials that Rutherford used in his experiment that discovered the nucleus.
What is lead block, gold foil, fluorescent screen, uranium (alpha particles)?
500
The ratio of elements by mass of water.
What is 1:8?
500
Magnesium has three isotopes. 78.99% magnesium 24 with a mass of 23.9850 amu, 10.00% magnesium 25 with a mass of 24.9858 amu, and the rest magnesium 26 with a mass of 25.9826 amu. What is the atomic mass of magnesium?
What is 24.306 amu
500
What 6 pieces of information can you find about an element on the periodic table.
What is # protons, atomic number, atomic mass, chemical symbol, chemical name.
500
What does the number in the bottom left corner represent?
What is number of protons (atomic number)
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