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chem > unit 3 > Flashcards

unit 3 Flashcards

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1
Q

A vertical column on the periodic table is called a…

A

group

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2
Q

The periodic table was first arranged by the scientist…

A

Mendeleev

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3
Q

The elements in the periodic table are presently arranged in order of increasing…

A

Atomic number (protons)

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4
Q

What says that when the elements of the periodic table are arranged in order of increasing atomic number, there are periodic patterns in physical/chemical properties?

A

Periodic Law

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5
Q

All the elements in group 17 will have what configuration in their outermost energy level?

A

p^5

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6
Q

Group 1 is also known as what metals?

A

Alkaline

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7
Q

The 2 rows on the bottom of the table are also known as what block?

A

F block

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8
Q

All the elements in what group will have an electron configuration that ends in p^2?

A

Group 14

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9
Q

The d block elements are also known as what?

A

Transition elements

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10
Q

The elements in group 12 have what electron configuration?

A

d^10

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11
Q

An atom with a positive or negative charge is called what?

A

Ion

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12
Q

An atom becomes a charged ion when it loses or gains what?

A

Electrons

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13
Q

The size of an atom is due mainly to the number of occupied what?

A

Energy levels

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14
Q

As you move down a group, the size of the atoms will do what, due to a greater number of what?

A

They will increase due to a greater number of electrons

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15
Q

As you move across a period from left to right, the size of an atom will do what, due to the increased number of what?

A

They will decrease due to an increased number of protons

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16
Q

The amount of energy required to remove the most loosely held electron from an atom is called what?

A

Ionization energy

17
Q

The amount of energy required to remove a second or third electron from an atom is always less or more than the amount needed for the first electron?

A

More

18
Q

For Potassium, we would expect a large increase in ionization occur when which electron is removed? And why?

A

The second electron, because potassium will have the same electron configuration as a noble gas (Argon) before that electron is removed, and the second electron will be in a lower energy level (closer to the nucleus)

19
Q

Ionization energy will increase as you move what direction, and decrease when you move what direction?

A

Increase from left to right, decrease from top to bottom

20
Q

The size of a positive atom will always be what, than the original neutral atom?

A

Smaller

21
Q

Vice versa, the size of a negative atom compared to the original neutral atom will be…

A

Larger

22
Q

What element has the highest electronegativity, and what is the value?

A

Fluorine, with 4.0

23
Q

Electronegativity is the ability of an atom to attract electrons to itself when the atom is in a what?

A

Chemical bond

24
Q

Electronegativity will do what as you move down a group?

A

Decrease

25
Q

The elements of which group do not have defined values for electronegativity?

A

Group 18

26
Q

Electronegativity will do what as you move left to right?

A

Increase

27
Q

Why would Li have a larger atomic radius than Fluorine?

A

Lithium has less protons, meaning less protons to pull on the outer electrons, allowing them to be farther from the nucleus.

28
Q

What was the name of the scientist who created the modern periodic table (arranged by atomic number)?

A

Moseley

29
Q

What elements are nonreactive, odorless, and colorless?

A

Noble gases

30
Q

What are the physical properties of metals?

A

Luster, malleable, ductile, and high conductivity

31
Q

How many valence electrons do Alkaline Earth Metals have?

A

2 valence electrons

32
Q

What is the charge of Alkali Metals?

A

1+

33
Q

What group are the Alkaline Earth Metals?

A

Group 2

34
Q

What group is known as the inner transition metals?

A

The F block

35
Q

What group are Halogens located?

A

Group 17

36
Q

What group are Noble Gases located?

A

Group 18

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