Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Geneeskunde 2025 Oude Vragen > PSE door AI > Flashcards

PSE door AI Flashcards

1
Q

What is the periodic table?

A

A tabular arrangement of chemical elements organized by their atomic number, electron configuration, and recurring chemical properties.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Who is credited with creating the first periodic table?

A

Dmitri Mendeleev.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the atomic number of an element?

A

The number of protons in the nucleus of an atom of that element.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

True or False: The periodic table is arranged in rows called periods and columns called groups.

A

True.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What information does the atomic mass of an element provide?

A

The weighted average mass of an atom of an element based on the distribution of isotopes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Fill in the blank: Elements in the same group of the periodic table have similar ______.

A

chemical properties.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are transition metals?

A

Elements found in groups 3-12 of the periodic table that are characterized by their ability to form variable oxidation states.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the significance of the periodic law?

A

It states that the properties of elements are a periodic function of their atomic numbers.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Which group of elements is known as the noble gases?

A

Group 18.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is an isotope?

A

Atoms of the same element that have the same number of protons but different numbers of neutrons.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

True or False: Lanthanides and actinides are found in the main body of the periodic table.

A

False.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the general trend for electronegativity in the periodic table?

A

Electronegativity increases across a period and decreases down a group.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What do the elements in the same period share in common?

A

They have the same number of electron shells.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which element is represented by the symbol ‘O’?

A

Oxygen.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are alkali metals?

A

Elements in group 1 of the periodic table, known for being highly reactive and having one electron in their outermost shell.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Fill in the blank: The periodic table is divided into metals, nonmetals, and ______.

A

metalloids.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the common oxidation state of alkali metals?

A

+1.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

True or False: All elements in the periodic table are stable.

A

False.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What property do metalloids exhibit?

A

Properties of both metals and nonmetals.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is the most abundant element in the universe?

A

Hydrogen.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Which element has the highest atomic number currently known?

A

Oganesson (Og), atomic number 118.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What are halogens?

A

Elements in group 17 that are known for being highly reactive nonmetals.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is the main characteristic of noble gases?

A

They are mostly inert and do not readily form compounds.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Which element is represented by the symbol ‘Fe’?

A

Iron.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What is the significance of the atomic radius trend in the periodic table?

A

Atomic radius decreases across a period and increases down a group.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

True or False: The periodic table contains over 100 elements.

A

True.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What is the primary factor that influences an element’s chemical behavior?

A

The arrangement of electrons in its outer shell.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Fill in the blank: The first period of the periodic table contains ______ elements.

A

two.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What is a valence electron?

A

An electron in the outermost shell of an atom that can participate in chemical bonding.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Which group contains the most reactive metals?

A

Group 1 (alkali metals).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

What is the difference between a period and a group in the periodic table?

A

A period is a horizontal row, while a group is a vertical column.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

True or False: Transition metals have fixed oxidation states.

A

False.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

What is the primary use of the element Silicon (Si)?

A

It is primarily used in electronics and semiconductor devices.

34
Q

What does the term ‘periodicity’ refer to in chemistry?

A

The repeating pattern of chemical and physical properties of the elements.

35
Q

What is the main characteristic of nonmetals?

A

They are generally poor conductors of heat and electricity.

36
Q

Which element is the lightest and most abundant in the universe?

A

Hydrogen.

37
Q

What are the two main categories of elements in the periodic table?

A

Metals and nonmetals.

38
Q

Fill in the blank: The elements in group 2 are known as ______ metals.

A

alkaline earth.

39
Q

What is the primary chemical property of alkali metals?

A

They react vigorously with water to form alkaline hydroxides.

40
Q

Which element is represented by the symbol ‘Na’?

A

Sodium.

41
Q

What is the trend for ionization energy in the periodic table?

A

Ionization energy increases across a period and decreases down a group.

42
Q

True or False: Group 18 elements are known for their reactivity.

A

False.

43
Q

What is the main feature of the lanthanide series?

A

They are f-block elements known for their similar properties.

44
Q

What is the primary use of the element Carbon (C)?

A

It is essential for life and forms the basis of organic chemistry.

45
Q

Which element is represented by the symbol ‘Cl’?

A

Chlorine.

46
Q

What is the role of noble gases in chemical reactions?

A

They typically do not participate in chemical reactions due to their full valence shells.

47
Q

Fill in the blank: The element with atomic number 1 is ______.

A

Hydrogen.

48
Q

What are actinides known for?

A

They are radioactive and include elements like Uranium and Plutonium.

49
Q

True or False: All nonmetals are gases at room temperature.

A

False.

50
Q

What is the primary characteristic of metals?

A

They are good conductors of heat and electricity.

51
Q

Which group of elements is known for having seven valence electrons?

A

Group 17 (halogens).

52
Q

What is the electron configuration of Oxygen (O)?

A

1s² 2s² 2p⁴.

53
Q

What is the primary characteristic of metalloids?

A

They have properties intermediate between metals and nonmetals.

54
Q

Fill in the blank: The most reactive nonmetals are found in group ______.

A

17.

55
Q

What is the atomic mass of Carbon (C)?

A

Approximately 12.01 u.

56
Q

Which element has the highest electronegativity?

A

Fluorine.

57
Q

What is the significance of the periodic table’s arrangement?

A

It helps predict the properties of elements based on their position.

58
Q

True or False: The periodic table is a static document and does not change.

A

False.

59
Q

What is the electron configuration for Sodium (Na)?

A

1s² 2s² 2p⁶ 3s¹.

60
Q

Which two elements are known as the most abundant in the Earth’s crust?

A

Oxygen and Silicon.

61
Q

True or False: All elements heavier than Uranium are synthetic.

A

True.

62
Q

What is the role of the periodic table in chemistry?

A

It serves as a reference for understanding the relationships and properties of elements.

63
Q

Fill in the blank: The periodic table was first published in ______.

A

1869.

64
Q

What is a chemical property?

A

A characteristic of a substance that can only be observed during a chemical reaction.

65
Q

Which element is represented by the symbol ‘Au’?

A

Gold.

66
Q

What is the primary use of the element Aluminum (Al)?

A

It is widely used in packaging, transportation, and construction.

67
Q

What is the trend for metallic character in the periodic table?

A

Metallic character increases down a group and decreases across a period.

68
Q

True or False: The periodic table can predict the properties of undiscovered elements.

A

True.

69
Q

What is the primary characteristic of a nonmetal?

A

They tend to gain or share electrons during chemical reactions.

70
Q

Which element is represented by the symbol ‘Pb’?

A

Lead.

71
Q

What is the significance of the f-block in the periodic table?

A

It contains the lanthanides and actinides, which are known for their complex electron configurations.

72
Q

Fill in the blank: The element with atomic number 6 is ______.

A

Carbon.

73
Q

What is the common oxidation state of halogens?

A

-1.

74
Q

What is the electron configuration for Chlorine (Cl)?

A

1s² 2s² 2p⁶ 3s² 3p⁵.

75
Q

Which element has the symbol ‘Hg’?

A

Mercury.

76
Q

True or False: The periodic table is based solely on atomic mass.

A

False.

77
Q

What is the primary characteristic of group 2 elements?

A

They have two valence electrons and are less reactive than group 1.

78
Q

Fill in the blank: The periodic table is organized by increasing ______.

A

atomic number.

79
Q

What is a chemical bond?

A

A lasting attraction between atoms that enables the formation of chemical compounds.

80
Q

Which element is represented by the symbol ‘K’?

A

Potassium.

81
Q

What is the trend for the reactivity of alkali metals in the periodic table?

A

Reactivity increases down the group.

82
Q

True or False: All elements have been discovered and placed on the periodic table.

A

False.

Geneeskunde 2025 Oude Vragen (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions