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Chemistry > Chapter 5 > Flashcards

Chapter 5 Flashcards

1
Q

Who was the first to use the term “elements”?

A

Lavoisier

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2
Q

Who also tried but failed to organize the elements into a certain order?

A

John dalton

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3
Q

Who was one of the first scientists to discover some of the common properties of elements?

A

Johann döbereiner

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4
Q

What were common properties of elements also called?

A

Triads

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5
Q

Who is the modern table credited to?

A

Dimitri Mendeleev

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6
Q

Who formulated the periodic law ( properties of elements vary with their atomic masses in a periodic way )?

A

Dimitri Mendeleev

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7
Q

Who suggested that the elements be arranged according to their atomic number?

A

Henry Moseley

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8
Q

What law states that “the properties of elements vary with their atomic numbers in a periodic way”?

A

The periodic law

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9
Q

In the structure of the periodic table what appears at the top of the cell?

A

Atomic number

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10
Q

In the structure of the periodic table what is the weighted average atomic mass?

A

Atomic mass

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11
Q

A vertical column of elements is called a ___________ or family because they usually have similar physical and chemical properties due to their similar electron configurations

A

Group

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12
Q

Horizontal rows of elements are called what?

A

Periods or series

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13
Q

The left side and the middle of the periodic table contains what?

A

The metals

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14
Q

The right side of the periodic table contains what?

A

Nonmetals

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15
Q

The _____________ are the elements immediately adjacent to the stair-step line.

A

Metalloids

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16
Q

The two rows at the bottom of the periodic table is called what?

A

The lanthide and the actinide series

17
Q

What are atoms that have lost or gained electrons?

A

Atomic ions

18
Q

What is the amount of energy required to add an electron to a neutral atom to form a negative ion, or anion

A

Electron affinity

19
Q

The measure of the attraction between the nucleus and valence electrons is called what?

A

Electronegativity

20
Q

Who was the first chemist to quantify electro negativity?

A

Linus Pauling

21
Q

What is the study of elements and the compounds they form?

A

Descriptive chemistry

22
Q

What is the lightest element and the most abundant in the entire universe?

A

Hydrogen

23
Q

Who was the first to systematically collect and study hydrogen?

A

Henry cavendish

24
Q

Group 1 (1A) elements are metals that are very chemically reactive, and are called what?

A

Alkali metals

25
Q

All the d block groups on the periodic table (Groups 3-12) belong to the group of elements called what?

A

Transition metals

26
Q

The ____________ ____________ is a description of how elements differ from one another

A

Periodic table

Chemistry (5 decks)

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