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GEN CHEM. > (Chap.1) Historical Background of Chem > Flashcards

(Chap.1) Historical Background of Chem Flashcards

1
Q

he studies the pitchblade in the year____

A

Wilhelm Roentgen
1895

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2
Q
  • exact weights
    of each constituent is founds.
A

quantitative analysis

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3
Q

Aristotle discovered
three types of radioactivity. TRUE or FALSE

A

FALSE

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4
Q

believed that
when a substance is burned,
phlogiston was added from the air
to the flame.

A

Johann J. Beecher

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5
Q

he discovered the mass of electron in the year____

A

Robert Milikan
1909

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6
Q

also known the Death of Alchemy

A

end of the 17th Century

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7
Q

concerned with
the physical properties of materials.

A

Physical Chemistry

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8
Q

is the study of
chemical elements and their
compounds (with the exception of
carbon compounds).

A

Inorganic chemistry

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9
Q

found out that
cathode rays were negatively
charged-__________-

A

J.J Thompson
electrons

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10
Q

collection of
techniques that allows exact laboratory
determination of the composition of a
given sample of material.

A

analytical chemistry

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11
Q

what theory was disproved in 1774-1794?

A

Phlogiston theory

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12
Q

Year when Alchemists tried and failed to create an
elixir to elongate life and cure ailments.

A

1520

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13
Q

it is the year that proclaims atom to be the simplest unit of matter

A

400 bc

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14
Q

discovered that given
two particles separated by a certain
distance

A

Charles Coulomb

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15
Q

he declares fire, air, water,
and earth as the only four
elements.

A

aristotle

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16
Q

they are the one attempted to transmute
cheap metals to gold

A

alchemists

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17
Q

what year and who invented the vacuum tube?

A

1854, Heinrich Geissler

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18
Q

both warned US of Germany’s
research on atomic fission
reaction. The US developed the
first working nuclear fission
reactor.

A

Albert Einstein and Enrico Fermi

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19
Q

what year does known metals recorded and listed in
conjunction with heavenly bodies?

A

1700 BC

20
Q

the __________ or
__________ is ___________ proportional to the
product of the two charges and is
___________ proportional to the distance
between the two charges.

A

force of attraction or repulsion directly proportional
inversely proportional

21
Q

Who discovered the cooking hypothesis?

A

richard wrangham

22
Q

he bombards elements with
neutrons to produce elements of the next
highest atomic number.__________ occurred when he bombarded uranium with
neutrons

A

Enrico Fermi
Nuclear Fission

23
Q

year of advent of alchemists

A

300 BC- 300 AD

24
Q

it is the study of compounds of carbon

A

Organic chemistry

25
Q

who proclaims atom to
be the simplest unit of matter?

A

Democritus

26
Q

who disproved the phlogiston theory?

A

Antoine Lavoisier

27
Q

what are the Subcategories within Physical Chemistry

A

thermochemistry
electrochemistry
chemical kinetics

28
Q

on what year and who discovered
positive particles- _______
hydrogen gas filled tubes

A

Eugene Goldstein
Protons

29
Q

year when the cathode rays was invented

A

1879

30
Q

what discovery occured in 1940’s?

A

The Manhattan Project

31
Q

what does dalton atomic theory states?

A

All matter is composed of atoms, which are small and indivisible.

32
Q

what book and wo is the author that disproved of Aristotle’s
four elements destroyed alchemy.

A

The Skeptical Chemist, Robert Boyle

33
Q

What are the divisions of chemistry?

A

Organic Chemistry
Physical Chemistry
Analytical Chemistry
Inorganic Chemistry

34
Q

year of failure of gold transmission

A

1200’s-1400’s

35
Q

he failed in
determining the number of
protons within the nucleus
because neutrons were not yet
discovered

A

Henry Mosely

36
Q

“to be human is to transform matter”

A

homo chemicus

37
Q

he is the one who use vacuum tubes to discover ___________

A

William Crookes, cathode rays

38
Q

they artificially created
elements by bombarding alpha
particles to certain elements.

A

Irene Curie and Frederic
Joliot-Curie

39
Q

subcategories of analytical chemistry that the identification of
atoms and molecules present in
compound

A

qualitative analysis

40
Q

year when artificial radioactive elements occurs

A

1934

41
Q

what law and theory happened in 1700’s?

A

Coulomb’s Law and Phlogiston Theory

42
Q

he bans the gold making

A

Pope John XXII

43
Q

______________ discovered thorium
and uranium within pitchblende.
She then discovered _______ and
___________- two previously unknown
elements

A

Marie Currie
radium and polonium

44
Q

He discovers the neutron in the year 1932

A

James Chadwick

45
Q

who Discovered and what are the three types of radioactivity

A

ernest rutherford
alpha particles, beta particles and gamma rays

46
Q

what is the mass of electron?

A

9.11x10^-28

GEN CHEM. (5 decks)

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