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Chem > Hw3 (2.7-2.8 // 3.1-3.2 // 5.3-5.4 // 10.2 // 10.5 > Flashcards

Hw3 (2.7-2.8 // 3.1-3.2 // 5.3-5.4 // 10.2 // 10.5 Flashcards

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1
Q

Smallest particle of an element that can exist is called a(n) _______

A

Atom

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2
Q

What elements are liquid at room temp?

A

Bromine (Br) and Mercury (Hg)

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3
Q

Most abundant element in universe?

A

Hydrogen (H)

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4
Q

Gaseous elements located where on periodic table?

A

Extreme right of periodic table

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5
Q

Elements in column 1A of periodic table are also known as…

A

Alkali metals

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6
Q

Elements in column 2A of periodic table are also known as…

A

Alkaline earth metals

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7
Q

Elements in column 7A of periodic table are also known as…

A

Halogens

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8
Q

Elements in column 8A of periodic table are also known as…

A

Noble gases

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9
Q

Elements in the middle of periodic table are also known as…

A

Transition metals

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10
Q

Potassium (K); metal, metalloid, or nonmetal?

A

Metal

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11
Q

Plutonium (Pu); metal, metalloid, or nonmetal?

A

Metal

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12
Q

Sulfur (S) ; metal, metalloid, or nonmetal?

A

Nonmetal

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13
Q

Antimony (Sb); metal, metalloid, or nonmetal?

A

Metalloid

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14
Q

Iodine (I) ; metal, metalloid, or nonmetal?

A

Nonmetal

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15
Q

Tungsten (W) ; metal, metalloid, or nonmetal?

A

Metal

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16
Q

Molybdenum (Mo) ; metal, metalloid, or nonmetal?

A

Metal

17
Q

Germanium (Ge) ; metal, metalloid, or nonmetal?

A

Metalloid

18
Q

What are the subatomic particles found in an atom?

A

Protons, neutrons, and electrons

19
Q

Where in atom are subatomic particles located?

A

Protons & neutrons in nucleus; electrons surround nucleus

20
Q

What part of atom contains practically all its mass?

A

Nucleus

21
Q

Most commonly used temp. scales?

A

Kelvin and Celsius

22
Q

How do Celsius and Fahrenheit degrees compare?
What is formula to convert Celsius to Fahrenheit?

A

Celsius degrees are larger.
T(F) = (1.8 * T(C)) + 32.0
(3 s.f.)

23
Q

How do Celsius and Kelvin degrees compare?
What is formula to convert Celsius to Kelvin?

A

Both degrees are same size.
T(K) = T(C) +273.15

Chem (17 decks)

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