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ICP > Periodic Table > Flashcards

Periodic Table Flashcards

0
Q

Improved the periodic table and arranged the elements in order of the atomic number

A

Henry Mosley

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1
Q

Arranged elements in order of atomic mass

A

Mendeleev

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2
Q

Equals the same element with different number of neutrons

A

Isotopes

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3
Q

Equals electrons in the outer energy level

A

Valance electrons

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4
Q

Equals bonding by sharing of electrons

A

Covalent bonding

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5
Q

Horizontal rows

A

Periods

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6
Q

Bonding by transferring electrons

A

Ionic bonds

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7
Q

Vertical columns

A

Groups

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8
Q

Second to last energy level

A

Penultimate level

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9
Q

Strong shiny malleable and ductile

A

Metals

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10
Q

Has one valence electron and reacts with water

A

Alkali

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11
Q

Hard, dense, found in the Earth’s crust, has two valence electrons

A

Alkaline earth metals

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12
Q

Have one or two valence electrons

A

Transition metals

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13
Q

The transition element, only one that is liquid at room temperature

A

Mercury

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14
Q

Brittle, not malleable or ductile, and do not conduct heat or electricity

A

Nonmetals

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15
Q

Most active of nonmetals

A

Halogens

16
Q

Unreactive and inert

A

Noble gases

17
Q

Contain properties of metals and nonmetals

A

Metalloids

18
Q

A capital letter or a combination of a capital letter and a small letter that is used to represent an element is called a

A

Chemical symbol

19
Q

An average of the masses of all the isotopes that occur in nature for an element is the

A

Average atomic mass

20
Q

Elements in the middle of the periodic table, group 4 through seven, are called the

A

Transition elements

21
Q

The number of protons in and atom is the

A

Atomic number

22
Q

Protons and neutrons are composed of

A

Quarks

23
Q

The center of an atom where protons and neutrons are located is the

A

Nucleus

24
Q

A total count of the neutrons and protons in an atom is the

A

Mass number

25
Q

Atoms of the same element but with different numbers of neutrons are

A

Isotopes

26
Q

Elements that are found on the left side of the periodic table are

A

Metals

27
Q

Elements that have some properties of both metals and nonmetals are

A

Metalloids

28
Q

The particles that move about the nucleus and have a negative charge are

A

Electrons

29
Q

The region around the nucleus occupied by electrons is a

A

Electron cloud

30
Q

A chart that shows the classification of elements is called the

A

Periodic table

ICP (1 decks)

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