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Science > 1122 > Flashcards

1122 Flashcards

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1
Q

Molecules

A

Smallest division of a compound that retains the properties of that compound.
Bonded collection of two or more Adams of the same or different elements

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2
Q

Cation

A

Positively charged ion

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3
Q

Adam

A

Smallest division of an element that retains all properties of an element

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4
Q

Atomic model

A

Simplified image that represents an atom

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5
Q

Mobile phase

A

Liquid or gas used in chromatography

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6
Q

Stationary phase

A

Porous solid used in chromatography

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7
Q

Isotope

A

From an element with the same atomic number but a different mass number

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8
Q

Colloidal particle

A

Central particle surrounded by ions

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9
Q

Compound

A

Homogeneous combination

Combination who’s elements chemically combined in definite proportions

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10
Q

Colloid

A

Combination in which particles of one substance are suspended in another
Heterogenous combination

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11
Q

Mass number

A

Total number of particles in an atomic number

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12
Q

Mixture

A

Heterogenous combination

Combination of two or more substances that retain their individual properties

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13
Q

Atomic number

A

Number of protons in each atom of an element

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14
Q

Mole

A

23

6.033 x 10 particles

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15
Q

Alpha particle

A

Two protons and two neutrons

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16
Q

Quarks

A

Subatomic particles that are components of protons and neutrons

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17
Q

Solution

A

Homogeneous combination

Combination with a uniform consistently who’s components do not chemically combined in definite proportions

18
Q

Anion

A

Negatively charged ion

19
Q

What are the elements be on uranium on the periodic table of elements called

A

Transuranium

20
Q

The purpose of atomic model is to explain what of Adams by summarizing the facts known about them

A

Behavior

21
Q

What must an electron with energy when it jumps to an orbital of lesser energy near the nucleus

A

Releases energy

22
Q

If a what particle and and what particle of equal mass come into contact with each other the result is annihilation and a release of tremendous energy

A

Matter… Antimatter

23
Q

What substances are those that contain regions of differing properties

A

Heterogenous

24
Q

What substances are those that contain a uniform properties throughout

A

Homogeneous

25
Q

Chemical formula for sodium bicarbonate

A

NaHCO

3

26
Q

Symbol for Tin

A

Sn

27
Q

Symbol for potassium

A

K

28
Q

Symbol for carbon

A

C

29
Q

Elements for Hg

A

Mercury

30
Q

Elements for N

A

Nitrogen

31
Q

Element for Na

A

Sodium

32
Q

A given compound always contains the same exact proportion of elements by mass

A

Law of definite proportions

33
Q

In an ordinary chemical reaction, the total mass of the reactants is equal to the total mass of the products

A

Law of conversion of mass

34
Q

When two elements form two or more different compounds, the ratios of the masses of the second element that combine with a fixed mass of the first element can always be expressed as a small hole number

A

Law of multiple proportions

35
Q

Electrons do not follow fixed Orbitz book form an electron cloud as they move around the nucleus in orbitals

A

Wave mechanical model of the atom

36
Q

It is impossible to determine the exact location and velocity of an electron at any given moment

A

The Heisenberg uncertainty principle

37
Q

Energy can only be absorbed or emitted in specific amounts called quanta

A

Quantum theory

38
Q

Proton

A

Positively charged

Compose the nucleus

39
Q

Neutrons

A

No charge

compose the nucleus

40
Q

Electrons

A

Negative charge

Orbits the nucleus

Science (4 decks)

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