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ANACHEM PREMID EXAM > kkkk > Flashcards

kkkk Flashcards

1
Q

Study of structure, properties, composition, and changes that matter undergoes.
- Study of matter.
- Central science.

A

Chemistry

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2
Q

Father of modern chemistry.

A

Antoine Lavoisier

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3
Q

Physical material of the universe.
- Anything that occupies space, and has mass.

A

matter

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4
Q

Refers to the amount of matter present in the material. (Constant)

A

mass

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5
Q

Mass x pull of gravity
Varies on the pull of gravity.

A

weight

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6
Q

Pull of gravity on moon

A

1.622 m/s2

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7
Q

pull of gravity on earth

A

9.8m/s2

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8
Q

Conceptualize the first true periodic table

A

ANTOINE-LAURENT de LAVOISIER

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9
Q

Invented the first lighter.

A

JOHANN WOLFGANG DOBEREINER

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10
Q

1st law of triads

A

Fe, Co, Ni

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11
Q

2nd law of triads

A

Ru, Rh, Pd

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12
Q

3rd law of triads

A

Os, Ir, Pt

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13
Q

Arranged the periodic table by increasing MASS NUMBER. (Atomic Weight)

A

JULIUS LOTHAR MEYER & DMITRI MENDELEEV

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14
Q
  • Re-arranged the periodic table of elements. (Now: Modern Periodic Table)
  • Arranged by increasing ATOMIC NUMBER
A

HENRY GWYN JEFFREYS MOSELEY

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15
Q
  • Building blocks of matter.
  • Basic unit of matter.
A

atom

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16
Q

who named atoms?

A

democritus

17
Q

Particles inside the atom.

A

subatomic particles

18
Q

subatomic particles

A

proton
neutron
electrons

19
Q

mass of proton

A

1.6726 x 10^-24

20
Q

mass of neutrons

A

1.675 x 10^-24

21
Q

mass of electrons

A

9.10938 x 10^28

22
Q

P + N (Found inside the nucleus)

A

mass number

23
Q

Gives the identity to the element.

A

proton

24
Q

Only subatomic particle affected by the chemical reactions.

A

electrons

25
Q

Equal number of Protons and Electrons.

A

neutral atoms

26
Q

Protons and Neutrons

A

nucleons

27
Q

Not affected by chemical reactions.

A

nucleons (protons and neutrons)

28
Q

Charged atoms.
- Unequal # of proton and electron

A

ions

29
Q

Negative Charged Atom

A

anion

30
Q

Positive Charged Atom

A

cation

ANACHEM PREMID EXAM (5 decks)

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