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INORG CHEM > 2nd quiz > Flashcards

2nd quiz Flashcards

1
Q

What are the 3 laws of matter?

A
  1. law of conservation mass
  2. law of definition composition
  3. law of multiple proportions
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2
Q

Discovered Law of conservation of mass?

A

Antoine-Laurent de Lavoisier (1743-1794)

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3
Q

the principle that in any closed system subjected to external forces, the mass is constant irrespective of its changes in form.

A

LAW OF CONSERVATION MASS

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4
Q

matter that cannot be created nor destroyed

A

LAW OF CONSERVATION MASS

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5
Q

The mass of the substance is equal to the substance after chemical reaction

A

LAW OF CONSERVATION MASS

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6
Q

WRITE THE EXAMPLE OF LAW OF CONSERVATION MASS

A

methane + oxygen = 80g
co2+ 2h2o= 80 g

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7
Q

every chemical compound contains FIXED and CONSTANT proportions (by mass) of its constituents elements.

A

LAW OF DEFINITE COMPOSITION

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8
Q

Chemical compound regardless of its sources and method of preparation form have same composition

A

LAW OF DEFINITE COMPOSITION

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9
Q

Example of law of definite composition

A

rain water and purified water =water

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10
Q

who discovered law of definite composition

A

Joseph Proust (1754-1826)

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11
Q

it is a law of matter where two element combine with each other to form more than one compound

A

LAW OF MULTIPLE PROPORTIONS

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12
Q

law of matter where the weights of one element that combine with fixed weight of the other are in a ratio of small whole numbers

A

LAW OF MULTIPLE PROPORTIONS

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13
Q

ratio of the mass of second element that combined with 1g of 1st element can be reduce into small numbers.

A

LAW OF MULTIPLE PROPORTIONS

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14
Q

WRITE THE EXAMPLE OF LAW OF MULTIPLE PROPORTIONS

A

WRITE

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15
Q

3 parts of the atom

A

Neutron
Proton
Electron

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16
Q

charges of the 3 parts of atom

A

Neutron- neutral charge
Proton- positive charge
Electron- negative charge

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17
Q

T/F: mass number is the total number of protons and neutrons in an atomic nucleus of the atom

A

TRUE

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18
Q

T/F: The atomic number of a chemical element is the number of protons in the nucleus of the atom

A

TRUE

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19
Q

Different in the mass # but same element and atomic number

A

ISOTOPES

20
Q

Different in elements and atomic number and same in mass #

A

ISOBARS

21
Q

Same in neutron

A

ISOTONES

22
Q

What are the new elements in periodic table? (5)

A

Nh- Nihonium
Mc-Moscovium
Lv-Livermonium
Og-Oganesson
Fl-Flerovium

23
Q

Who invented the first 33 elements in periodic table and differentiate metal to nonmental?

A

Antoine-Laurent de Lavoisier

24
Q

Who invented law of Triads?

A

Johan Dobereiner

25
Q

atomic mass of middle element is equal to the mean of atomic mass of the 2 elements

A

LAW OF TRIAD

26
Q

addition of 1st and 2nd element divided into 2

A

mean

27
Q

Invented the law of octaves

A

John Newlands

28
Q

States that every 8th element has similar properties when the elements are arranged in the increasing order of their atomic muscle

A

LAW OF OCTAVES

29
Q

Father of the modern periodic table

A

Dmitri Mendeleev

30
Q

Dmitri Mendeleev arranged the __________

A

Arranged the table with groups (horizontal 1-7) and raw (vertical 1-18).

31
Q

Invented the periodic law

A

Henrey Mosely

31
Q

Property varies with increasing atomic number

A

Henrey Mosely

32
Q

He discovered the transuranic elements

A

Glenn Seaborg

33
Q

What is transuranic elements?

A

-member of actinides
- exhibit radio activity

34
Q

What is Radio activity

A

elements produce radiation

35
Q

Example of elements that exhibit radiation

A

URANIUM
POLONIUM
THORIUM

36
Q

What energy needed to remove outermost electron

A

Ionization Energy

37
Q

Write the direction of ionization energy

A

Left to right
bottom to top

38
Q

the total distance from the nucleus of an atom to the
outermost orbital of its electro

A

Atomic Radius

39
Q

Write the direction of Atomic Radius

A

right to left
top to bottom

40
Q

Energy given off when neutral atom gain extra electron

A

Electron Affinity

41
Q

When neutral atoms extra electron leads to making more negative charge

A

Electron Affinity

42
Q

Write the direction of Electron Affinity

A

Left to right
Bottom to top

43
Q

If increase electron affinity it means it increase or GAINS the charge is

A

NEGATIVE CHARGE

44
Q

If decrease electron affinity it means it decrease or DONATES the charge is

A

POSITIVE CHARGE

45
Q

Ability of an atom to attract electron pair to itself, forming
covalent bond

A

Electronegativity

46
Q

4 types of subshell and equal to

A

s-2
p-6
d-10
f-14

INORG CHEM (7 decks)

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