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Benchmark 4 Flashcards

0
Q

The most penetrating type of radiation

A

Gamma

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1
Q

Negatively charged particles emitted from a nucleus at high speen

A

Beta

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2
Q

The amount of time it takes for half of a radioactive isotope to break apart

A

Half life

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3
Q

The process by which nuclei having low masses are united to form nuclei with larger masses

A

Alpha

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4
Q

Atoms of the same element with a different number of neutrons

A

Isotope

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5
Q

Stopped by a piece of paper, a helium nucleus that is the weakest form of radiation

A

Alpha

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6
Q

The splitting apart of a nucleus of a larger atom into two smaller atoms

A

Fission

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7
Q

Group 18 inert do not form compounds

A

Noble gases

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8
Q

The most reactive group of metals

A

Alkali metals

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9
Q

Elements that form slats by combining with metals

A

Halogens

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10
Q

Includes oxygen and sulfur

A

Chalcogens

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11
Q

React to form bases found in minerals

A

Transition metals

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12
Q

Found on the stair step line part metal part nonmetal

A

Metalloids

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13
Q

What does the chemical symbol represent for an element

A

Name

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14
Q

This shows the number of element in a compound and how

A

Chemical formula

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15
Q

What do dot diagrams represent

A

Valence elements

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16
Q

What kind of chemical bond I’d formed when an equal exchange or transfer of electrons occurs

A

Ionic

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17
Q

Hold atoms together in a compound

A

Chemical bond

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18
Q

A group of covalently bonded atoms that acts together as one charges atom

A

Poly atomic ion

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19
Q

This is an abbreviation used for elements in chemistry

A

Chemical symbol

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20
Q

A chemical bond that occurs when atoms share electrons

A

Covalent

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21
Q

What is an insoluble compound that forms during a chemical reactions

A

Precipitate

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22
Q

Numbers that precede chemical formulas used to balance equations

A

Coefficients

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23
Q

H2o (l)

A

Liquid

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24
Represent oxidation numbers or charges of ions
Superscripts
25
Dissolved in water (aq)
Aqueous
26
O2 (g)
Gas
27
The number of each type of atom in the compound is shown by these numbers
Subscripts
28
Na (s)
Solid
29
When two elements or compounds combine to make one large compound
Synthesis
30
When one element replaces another element in a compound
Single displacement
31
When a compound splits apart into smaller compounds or elements
Decomposition
32
When a carbon compound reacts with oxygen to form heat carbon dioxide and water
Combustion
33
When an element gains electrons
Reduction
34
When an element loses electrons
Oxidation
35
When two slats react break apart and recombine to make two new compounds
Double displacement
36
When a strong acid reacts with. A strong base to produce water and salt
Acid base neutralization
37
Sodium chloride
NaCl
38
Mg(NO3)2
Magnesium nitrate
39
The sum of the oxidation numbers in a neutral compound
Zero
40
The mass of the products must equal the mass of the reactants
Law of conservation of mass
41
The particles of matter the make up protons and neutrons
Quarks
42
Copper (2) sulfate
CuSO4
43
Br2 i2 n2 cl2 h2 o2 f2
Diatomic molecules
44
The only metal that is a liquid at room temperature
Mercury
45
A+b= ab
Synthesis
46
A + bc = ac + b
Single displacement
47
Abc = bc + a
Decomposition
48
Ab + cd = ad + cb
Double displacement
49
A _____ chemical equation has the same number of atoms of each element on each side of the equation
Balanced
50
Each substance on the left side of the arrow in a chemical equation is a
Reactant
51
The energy required to break the original bonds is less than the energy release when new bonds for in an
Exergonic
52
If heat must be added to a chemical reaction for the reaction to take place the reaction is
Endothermic
53
What type of reaction is shown in the following chemical equation NH3+HCL=NH4CL
Synthesis
54
Which of the could represent a decomposition reaction
Compound = element. And element
55
In a chemical equation the symbol that means dissolved in water is
(Aq)
56
When one elect replaces another elect in a compound the reaction is a ___ reaction
Single displacement
57
A substance that speeds up a chemical reaction without being per mantle changed itself is a
Catalyst
58
The breaking down of a substance into two or more simpler substances is
Decomposition
59
Each substance to the right of the arrow in a chemical equation is a
Product
60
Substances that prevent or slow down chemical reactions is called
Inhibitors
61
A chemical reaction in which heat is released is
Ectothermic
62
Numbers that precede Sybil's in a chemical equation are
Coefiicients
63
According to. The law of c mass how does the mass of the products in a chemical reaction compare to the mass of the reactants
Masses are equal
64
What is an insoluble compound that forms during a chemical reaction
Precipitate
65
A chemical reaction in which two or more substances combine to form another substance is called a
Synthesis reaction
66
The burning of wood in a campfire that produces heat and light would be both __ and an ___ reaction
Exergonic. Exothermic
67
When most chemicals reactions take place some ___ in the reactants must be broken a process that requires energy
Chemical bonds
68
Copper (2)sulfate plus iodide yields copper (2) iodide plus sodium sulfate is represented by which balanced equation
CuSO4. 2 NaI = Na2SO4. CuI2
69
Jackals do
Laid deck
70
Skis did
Kind side

Physics (8 decks)

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