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Biology > Biology Chapter 2/3 Test > Flashcards

Biology Chapter 2/3 Test Flashcards

(65 cards)

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1
Q

Biochemistry

A

Chemistry of life

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2
Q

Proton

A

Positively charge/reside in nucleus

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3
Q

Electron

A

Negatively charged/reside in electron cloud

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4
Q

Neutron

A

No charge/reside in nucleus

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5
Q

Nucleus charge

A

Positive

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6
Q

Atomic Number

A

Tells # of protons in an atom

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7
Q

Atomic Mass

A

Protons+Neutrons

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8
Q

Proton/Neutron Mass:

A

1 amu

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9
Q

All elements and compounds:

A

Have a neutral charge

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10
Q

Isotope

A

The # neutrons changes

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11
Q

The amount of protons:

A

Can never change

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12
Q

The mass of 1 proton =

A

The mass of 1,803 electrons

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13
Q

2 Most common isotopes:

A

Uranium/Plutonium

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14
Q

3 Hydrogen Isotopes:

A

Protium - 1P/0N
Deuterium - 1P/1N
Tritium - 1P/2N

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15
Q

Ion

A

Atom with a charge
Electron # changes

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16
Q

Valence electrons

A

Outermost electrons/those in the last NRG level

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17
Q

Max # electrons in an NRG level:

A

2n^2

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18
Q

All elements are:

A

Neutral

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19
Q

Group 1:

A

+1 Ionic Charge
1 Bond
1 Valence Electron

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20
Q

Group 2:

A

+2 Ionic Charge
2 Bonds
2 Valence Electrons

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21
Q

Group 3:

A

+3 Ionic Charge
3 Bonds
3 Valence Electrons

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22
Q

Group 4:

A

+4/-4 Ionic Charge
4 Bonds
4 Valence Electrons

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23
Q

Group 5:

A

-3 Ionic Charge
3 Bonds
5 Valence Electrons

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24
Q

Group 6:

A

-2 Ionic Charge
2 Bonds
6 Valence Electrons

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25
Group 7:
-1 Ionic Charge 1 Bonds 7 Valence Electrons
26
Group 8:
0 Ionic Charge 0 Bonds 8 Valence Electrons (Except He)
27
Compound:
2 or more elements together
28
Element:
Simplest form of matter
29
Group 1 called: Group 2 called: Group 7 called: Group 8 called: No group: Below the table: - 1st Row: - 2nd Row:
Alkali metals (not H) Alkaline Earth Metals Halogens Noble Gases Transitional Elements Inner Transitional Elements Lanthanides Actinides
30
Elements to the left of ziz-ag line: Elements to the right of zig-zag line:
Metals (Not H) Nonmetals
31
Metalloids have:
Properties of both metals and nonmetals
32
Bromine is the only:
Nonmetal liquid at room temp.
33
Ionic Bond
Transferring of electrons between a metal and a nonmetal
34
Covalent Bond
Sharing of electrons between 2 nonmetals
35
Shape of a water molecule
Bent
36
When H2O freezes:
It expands Floats in water (less dense) Volume -> Up Density -> Down
37
Why is water polar?
Oxygen is slightly negative Hydrogen is slightly positive
38
Hydrogen Bond:
Bond formed between 2 molecules involving Fluorine, Oxygen, or Nitrogen and Hydrogen (can be broken)
39
1 Water Molecule makes:
4 Hydrogen Bonds
40
Cohesion
Attraction between the same substance (Polar molecules can bond with itself)
41
Adhesion
Attraction between different substances (Capillarity (sieve tubes) or meniscus)
42
O I L R I G
Oxidation Is Losing Reduction Is Gaining
43
Atomic Mass is always:
A whole number (Or an average of Isotopes)
44
How to find neutron number:
Atomic Mass-Atomic Number
45
Solids:
Definite shape and volume/FIXED
46
Liquids:
Indefinite shape and definite volume/FLOWING
47
Gas:
Indefinite shape and volume/COMPRESSABLE
48
Reactant
Substance that starts a rxn
49
Product
Substance that is made in a chemical rxn
50
Plasma
Ionized gas/4th state of matter
51
Ion with + charge: Ion with - charge:
cation anion
52
Enzyme:
Protein that acts as a catalyst
53
Catalyst:
Speeds up a chemical rxn
54
H2O+CO2=
H2CO3 (Carbonic Acid) which can be carried in the blood
55
H2O+CO2 rxn takes place in: H2CO3 rxn takes place in:
Blood Lungs
56
Which catalyst speeds up Carbonic Acid rxn?
Carbonic Anhydrase
57
pH Scale:
14 Numbers Measures acidic and basic substances 0-7 is acid, 7-14 is base, 7 is neutral
58
Acids have: Bases have:
More H+ hydrogen ions that OH- hydroxide ions More hydroxide ions OH- than hydrogen ions H+
59
H+ + OH- = H20 =
H2O H+ + OH-
60
Buffer
Neutralizes small amounts of pH
61
Solute:
Stuff that is dissolved
62
Solvent:
Stuff that does the dissolving
63
Solution:
Solute and Solvent together
64
Electron Configuration:
The most stable arrangement of electrons in an element
65
NRG Level broken down into:
Sublevels into orbitals

Biology (5 decks)

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