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Atomic Structure and Atomic Theory
Periodic Table and Trends
Chemical Bonding,structures,and names
Stoichiometry
Chemical Reactions
100
Atom
the greek philosopher Democtritus Coined what term for a tiny piece of matter that cannot be divided?
100
the number of energy levels.
The rows of a periodic table are based upon these.
100
Ionic Bond
What is / If a bond’s character is more than 50% ionic, then the bond is called an ______.
100
Always true
Normally, the actual yield in a chemical reaction will be equal to or less than the theoretical yield.(never true,always true,or sometimes true)
100
A Chemical Reaction
When chemical bonds break and new bonds form, what occurs
200
the ratio of there masses are always the same
according to John Daltons theory,when elements combine in a compound..
200
The number of Valence electrons
the Columns of a periodic table are based upon these.
200
Polar Covalent
What is / If electrons involved in bonding spend most of the time closer to one atom rather than the other, the bond is______.
200
Always true
The heat terms in a thermochemical equation can be treated like any other reactant or product.(never truealways true,sometimes true)
200
It is a way of describing a chemical reaction using the chemical formulas of the reactants and products.
What is a chemical equation
300
Ernest Rutherford
Who provided evidence for the existence of the nucleus in an atom.
300
Atomic symbols
What is a two letter code with the first letter capatalized?
300
ionic Character
What is / The greater the electronegativity difference between two atoms bonded together, the greater the bond’s percentage of___
300
Never True
The actual yield of a chemical reaction can be calculated using mole ratios(never true,sometimes true,always true)
300
the formation of new substances
What is the only sure evidence of a chemical reaction?
400
Planets orbiting the Sun
In Neil Bohrs model of the atom,electrons move like what?
400
Simplist groups of elements
What is metals,metalloids,and nonmetals
400
Polar
What is /A covalent bond in which there is an unequal attraction for the shared electrons is_____ .
400
96.4%
For the reaction 2 H2 + O2
400
It is a solid that settles out of solution.
What is a precipitate?
500
contains negatively charged particles
J.J thomson's experiments provided evidence that an atom...
500
the atomic number,or number of protons.
What is the most basic order for elements in the periodic table
500
polar covalent
What is /Bonds that possess between 5% and 50% ionic character are considered to be___ .
500
75.1 g CO2
How many grams of carbon dioxide are produced when 88.7 g of oxygen are reacted with an excess of butane?
500
Matter can not be created or destroyed.
What does the principle of conservation of matter state?