What is the small, massive central part of an atom?
The nucleus.
100
What lists all of the elements in rows corresponding to increasing numbers of electrons in each shell, and in columns corresponding to elements with similar numbers of outer shell electrons and similar chemical behavior?
The Period Table of Elements.
100
The state of matter in which the subtrance has a fixed volume but not a fixed shape
Liquid.
100
Changes of state are defined as what?
Transitions among solid, liquid, and gas.
100
Of Mice and Men.
John Steinbeck
200
The __________ says that no two electrons can occupy the same energy state at the same time.
The Pauli exclusion principle.
200
How can you tell when an electron jumps from a higher to lower energy level?
It emits light.
200
The type of reaction in which the final energy of the electrons is greater than the initial energy?
Endothermic Reaction.
200
What are the three principal types of chemical bonds?
Ionic, metallic, and covalent
200
The Green Mile, IT, The Shining.
Stephen King.
300
The atomic number is equal to what?
The number of protons in the nucleus.
300
In Greek atom means what?
Uncuttable.
300
Reactions in which materials lose electrons are called what?
Oxidation.
300
What is plasma?
A state of matter in which positive nuclei move about in a sea of electrons.
300
The Iliad, The Odyssey
Homer.
400
Most atoms adopt one of the three strategies to achieve a filled shell. What are the three strategies?
Give away electrons, accept electrons, and share electrons.
400
What are elements?
Materials which could not be broken down into other substances by any chemical means.
400
The name of the process in which matter changes from solid to gas.
Sublimation.
400
What are chemical bonds in which the electrical force between two oppositely charged ions holds the atoms together?
Ionic Bonds.
400
Harry Potter
JK Rowling.
500
What is the collection of photons emitted by a given atom?
It's Spectrum.
500
What does a spectroscope do?
Shows which elements are contained in light.
500
How does hydrogen bonding work?
Polaized molecules are attracted to the slightly positive and slightly negative ends of each other.
500
What is a polymer
Extremely long and large molecules that are formed from numerous smaller molecules.
500
The adventures of Oliver Twist, Great Expectations, David Copperfield.