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Gen, Org, and Inorg Chemistry > Matter and Periodic table > Flashcards

Matter and Periodic table Flashcards

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1
Q

Combination of two or more pure substances

CHOICES:
Elements, Homogenous Mixture, Heterogeneous Mixture, Compounds, Pure Substances, Pure Substances, Mixtures

A

Mixtures

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2
Q

Substances with a fixed composition.

CHOICES:
Elements, Homogenous Mixture, Heterogeneous Mixture, Compounds, Pure Substances, Pure Substances, Mixtures

A

Pure Substances

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3
Q

Substances that consists of identical atoms

CHOICES:
Elements, Homogenous Mixture, Heterogeneous Mixture, Compounds, Pure Substances, Pure Substances, Mixtures

A

Elements

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4
Q

A pure substance is made up of two or more elements in a fixed ratio by mass.

CHOICES:
Elements, Homogenous Mixture, Heterogeneous Mixture, Compounds, Pure Substances, Pure Substances, Mixtures

A

Compounds

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5
Q

Has a uniform composition throughout.

CHOICES:
Elements, Homogenous Mixture, Heterogeneous Mixture, Compounds, Pure Substances, Pure Substances, Mixtures

A

Homogenous Mixture

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6
Q

Substances that cannot be further purified

CHOICES:
Elements, Homogenous Mixture, Heterogeneous Mixture, Compounds, Pure Substances, Pure Substances, Mixtures

A

Pure Substances

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7
Q

Has a nonuniform composition throughout.

CHOICES:
Elements, Homogenous Mixture, Heterogeneous Mixture, Compounds, Pure Substances, Pure Substances, Mixtures

A

Heterogeneous Mixture

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8
Q

Characterized by its formula
that gives the ratios of the compound’s constituent elements.

CHOICES:
Elements, Homogenous Mixture, Heterogeneous Mixture, Compounds, Pure Substances, Pure Substances, Mixtures

A

Compounds

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9
Q

There are 118 elements known and 86 of them occur in nature. True or False

A

False - 88

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10
Q

Elements in the periodic table are arranged in similar atomic weight through rows and columns. True or False

A

False - arranged in similar properties

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11
Q

Who proposed the dobereiner’s triad?

CHOICES:
Johann Wolfgang Dobereiner, Jonathan Wolfgang Dobereiner, Henry Moseley, John Newlands, Dimitri Mendeleev

A

Johann Wolfgang Dobereiner

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12
Q

The concept of dobereiner’s triad is to group the similar elements not triads where the atomic weight of the second element is the sum of the first and third element. True or False

A

False - average of the first and third element

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13
Q

John Newlands discovered that the properties of 8th element are a repetition of properties of the 1st element. True or False

A

True

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14
Q

Atomic weights of the

elements were related to the periodic variation in their properties in the Mendeleev’s table. True or False

A

True

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15
Q

Who suggested that it was the charge of the nucleus and not the atomic weight that accounted for the periodic trends in the properties of the elements?

CHOICES:
Johann Wolfgang Dobereiner, Jonathan Wolfgang Dobereiner, Henry Moseley, John Newlands, Dimitri Mendeleev

A

Henry Moseley

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16
Q

Solid at room temperature (except for mercury which is liquid), shiny, can conduct electricity, ductile and malleable

CHOICES:
Metals, Atomic size, Electron Affinity, Electronegativity, Atomic size, Ionization Energy, Nonmetals, Metalloids

A

Metals

17
Q

Appear to the right side of the Periodic Table

CHOICES:
Metals, Atomic size, Electron Affinity, Electronegativity, Atomic size, Ionization Energy, Nonmetals, Metalloids

A

Nonmetals

18
Q

Composed of 6 elements: boron, silicon, germanium, arsenic, antimony, and tellurium.

CHOICES:
Metals, Atomic size, Electron Affinity, Electronegativity, Atomic size, Ionization Energy, Nonmetals, Metalloids

A

Metalloids

19
Q

Some are shiny like metals but do not conduct electricity (such as silicon).

CHOICES:
Metals, Atomic size, Electron Affinity, Electronegativity, Atomic size, Ionization Energy, Nonmetals, Metalloids

A

Metalloids

20
Q

cannot conduct electricity, can be solid (phosphorus and iodine), liquid (bromine), or gas (Group 8A or noble gases).

CHOICES:
Metals, Atomic size, Electron Affinity, Electronegativity, Atomic size, Ionization Energy, Nonmetals, Metalloids

A

Nonmetals

21
Q

Have some properties of metals and some of nonmetals.

CHOICES:
Metals, Atomic size, Electron Affinity, Electronegativity, Atomic size, Ionization Energy, Nonmetals, Metalloids

A

Metalloids

22
Q

Accept electrons in chemical reactions.

CHOICES:
Metals, Atomic size, Electron Affinity, Electronegativity, Atomic size, Ionization Energy, Nonmetals, Metalloids

A

Nonmetals

23
Q

It increases with increasing number of electron shell down a group in the periodic table (increases down and left)

CHOICES:
Metals, Atomic size, Electron Affinity, Electronegativity, Atomic size, Ionization Energy, Nonmetals, Metalloids

A

Atomic size

24
Q

Amount of energy released or
exerted when an atom gains an electron.

CHOICES:
Metals, Atomic size, Electron Affinity, Electronegativity, Atomic size, Ionization Energy, Nonmetals, Metalloids

A

Electron Affinity

25
Q

Energy needed to separate an electron from a gaseous ground state atom.

CHOICES:
Metals, Atomic size, Electron Affinity, Electronegativity, Atomic size, Ionization Energy, Nonmetals, Metalloids

A

Ionization Energy

26
Q

Ability of the atom to gain
additional electron which depends on the attraction between the electron and the nucleus of an atom.

CHOICES:
Metals, Atomic size, Electron Affinity, Electronegativity, Atomic size, Ionization Energy, Nonmetals, Metalloids

A

Electron Affinity

27
Q

Refers to the distance from the nucleus to the outermost occupied electron shell.

CHOICES:
Metals, Atomic size, Electron Affinity, Electronegativity, Atomic size, Ionization Energy, Nonmetals, Metalloids

A

Atomic size

28
Q

Ability of an atom to attract
and electrons to itself.

CHOICES:
Metals, Atomic size, Electron Affinity, Electronegativity, Atomic size, Ionization Energy, Nonmetals, Metalloids

A

Electronegativity

29
Q

Oxygen, Silver, and Diamond are classified as _________

A

Elements

30
Q

Table salt and Carbon Dioxide are classified as _________

A

Compounds

31
Q

Sea water, Air, Bronze, and Wie are classified as ______

A

Mixture

Gen, Org, and Inorg Chemistry (15 decks)

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