History of the Atom
He proposed the “plum pudding” model of the atom.
Who is J.J. Thomson?
These digits are always significant, no matter what.
What are non-zero digits?
Halogens are highly reactive because they have this many electrons in their valence shell.
What is 7?
A bond formed between a metal and a nonmetal is usually this type.
What is an ionic bond.
Name this molecule:
H H H H
| | | |
H-C-C-C-C-H
| | | |
H H H H
What is Butane
Rutherford’s gold foil experiment proved the existence of this positively charged center.
What is the nucleus?
This mathematical process sometimes increases sig figs if you add a decimal at the end.
What is rewriting a measurement in scientific notation?
This property is the energy required to remove an electron.
What is ionization energy?
This type of bond occurs when there is a sharing of electrons.
What is a covalent bond?
Name this molecule
H
|
H-C-H
H H | H H
| | | | |
H-C-C-C=C-C-H
| | |
H H H
What is 3-methyl 2-pentene
This scientist’s model introduced electrons being in quantized, fixed energy levels (orbits).
Who is Niels Bohr?
In addition and subtraction, your answer must match the measurement with the fewest of these.
What are decimal places?
This trend increases as you go from left to right across a period.
What is electronegativity?
Ionic compounds tend to have these properties:
A high melting point and this property in STP
What is poor electrical conductivity.
Name this molecule:
H
|
H-C-H
H | H H
| | | |
H-C-C-C-C=C-C-H
| | | | |
| H H H H
H-C-H
|
H
What is 5,6-methyl 2-hexene
What model was made after the experiment ran by the Cathode Ray Tube?
What is Plum Pudding Model?
Trailing zeros in a whole number without a decimal (like 3000) are considered this.
What is ambiguous (or not significant)?
This atomic size trend increases as you move down a group.
What is atomic radius?
A C-C bond in which electrons are equally shared forms what kind of bond?
What is a nonpolar covalent bond.
Name this molecule (=- represents a triple bond):
H
|
H-C-H
H H H H H H | H
| | | | | | | |
H-C-C-C-C=-C-C-C-C-H
| | | | | |
| H H H H |
H-C-H H-C-H
| |
H H-C-H
|
H
What is 1,7-Methyl 8-ethyl 4-Octyne
He was the first to propose that matter is made of tiny, indivisible particles called “atomos.”
Who is Democritus?
When multiplying 4.56 × 1.230, your answer must contain this many significant figures.
What is three?
Noble gases generally do not form bonds because they already have this configuration, giving them extremely low electron affinity.
What is a full valence shell.
When examining bonds these are some physical properties used to identify them:
Melting/Boiling points, Electrical Conductivity, and this property.
What is hardness/malleability.
Draw this molecule:
1,2,3,4-Pentyl 5,6-Ethyl 7-Octyl 8-Methyl 1-Nonyne
Idk have Mr. Yappatron check it.