Worksheets2.1 The Periodic Table
Total questions: 15
Worksheet time: 8mins
Who published the first version of the Periodic Table of the Elements in 1869?
Marie Curie
Dmitri Mendeleev
Niels Bohr
Henry Moseley
What is the basis for organizing the elements in the modern periodic table?
Atomic weight
Number of neutrons
Increasing atomic number
Number of electrons
How many periods are there in the modern periodic table?
7
8
6
5
What determines the chemical reactivity and properties of an element?
Number of protons
Atomic weight
Valence electrons
Number of neutrons
Which group of elements are known as the representative elements?
Group VA through VIIIA
Lanthanide and actinide series
Group IA through VIIIA
Transition elements
What is the electron configuration of an element in Group VA?
s²p⁵
s²p⁴
s²p³
s²p²
In the modern IUPAC identification system, how are the groups numbered?
1 to 16
1 to 10
1 to 8
1 to 18
Which subshells do the transition elements have valence electrons in?
s and f
s and d
p and d
s and p
What is the electron configuration of chromium?
4s² 3d⁵
4s¹ 3d⁵
4s² 3d⁴
4s¹ 3d⁴
What is the electron configuration of copper?
4s² 3d⁵
4s¹ 3d¹⁰
4s² 3d⁸
4s¹ 3d¹
What is the periodic law?
The chemical and physical properties of the elements are dependent on their number of protons
The chemical and physical properties of the elements are dependent on their atomic weight
The chemical and physical properties of the elements are dependent on their atomic number
The chemical and physical properties of the elements are dependent on their number of neutrons
What is the principal quantum number for the s- and p-block elements?
n = 1 through n = 6
n = 1 through n = 4
n = 1 through n = 7
n = 1 through n = 8
What are the valence electrons?
Closest to the nucleus and have the least potential energy
Farthest from the nucleus and have the greatest potential energy
Farthest from the nucleus and have the least potential energy
Closest to the nucleus and have the greatest potential energy
What does the Roman numeral above each group in the periodic table represent?
Number of neutrons
Number of electrons in the outermost shell
Number of valence electrons
Number of protons
What does the letter designation A or B in the periodic table represent?
Number of protons
Number of electrons in the outermost shell
Number of neutrons
Number of valence electrons
