Show:
Important People & what they discovered/ theorized
Atomic Structure
Chapter-based questions
Equations
Potpourri
100
The scientist who discovered the atomic theory.
Who is Dalton?
100
The four atomic sublevels.
What are s, p, d, f?
100
The smallest particle of an element that retains its identity in a chemical reaction
What is an atom?
100
The equation to find the number of neutrons in the nucleus of an atom
What is mass number-atomic number (or number of protons)
100
a horizontal row on the periodic table
what is a period
200
Who is the philosopher who theorized that the smallest part of matter is the atom, which he believed was indivisible?
Who is Democritus?
200
The total number of electrons in this sublevel is 2
What is Sublevel s?
200
Subatomic particles in Dalton’s Atomic Theory.
What are electrons, protons, and neutrons?
200
BACKWARDS: How many protons are in Aluminum?
13
200
What are nucleons?
The name of the protons and Neutrons in an atom.
300
Scientist who theorized that electrons are in fixed orbits around the nucleus, in fixed distances.
Who was Bohr (1914)?
300
The number of electrons this sublevel can hold is 10
What is Sublevel d?
300
The tiny central core of an atom which is composed of Protons and Neutrons.
What is the nucleus?
300
equation to calculate to atomic mass of an element
What is multiply the mass of each isotope by its natural percent abundance (expressed as a decimal) and then add the products
300
this is how isotopes of an element differ from each other
What is the mass number and number of neutrons
400
Who is Thompson?
He disproved Dalton who believed that all elements were made up of indivisible atoms.
400
The formula to find the maximum number of electrons in energy levels 1-4.
What is 2(n)^2? **This rule only applies to energy level 1-4, after the fourth energy level the number of electrons stay at 32.
400
each energy ____ corresponds to an orbital of a different shape, which describes where the electron is likely to be found
What is energy sublevel?
400
equation for calculating the percent error of a measurement
What is dividing the amount of error by the accepted value and multiplying by 100%
400
Thomson discovered electrons with the help of this
What is the cathode ray
500
Backwards Jeopardy Question: EXPLAIN Rutherford's Gold Foil Experiment. 1.) Explain what is happening in the experiment 2.) What were the results of the experiment? (Hint: Where did MOST of the particles go? Where did SOME of the particles go?) 3.) What was the conclusion of his experiment? Include all parts of the answer (Partial Credit given accordingly)
1.) Positively charged alpha particles were bombarded at a piece of gold foil. 2.) (a) Most of the particles went through the foil. (b) Some of the particles were deflected at an angle. 3.) (a) Most of the atom is empty space! (b) The atom has a small, positively charged nucleus.
500
BACKWARDS: DRAW the electron Dot Diagram for the element Boron.
B with two dots to the right and one dot on top Electron Configuration: 1s^2 2s^2 2p^1 There are 3 valence electrons (The electrons that react in an chemical equation
500
A ___ of energy is the amount of energy required to move an electron from one energy level to another level.
What is a quantum?
500
BACKWARDS: Find the number of valence electrons in the element Oxygen.
6
500
the four quantum numbers and what each codes for about the probable location of the electron
What is 1-energy level 2-sublevel 3-orbital 4-spin