Quiz: Periodic Table and Elemental Configurations
Introduction
we delve into the fascinating world of the periodic table and elemental configurations. The periodic table is a cornerstone of chemistry, organizing elements by their properties and atomic structures. We’ll cover various aspects of the periodic table, including the classification of elements, electronic configurations, and the unique characteristics of different element groups.”
Quiz: Periodic Table and Elemental Configurations
1-How many known elements are there in the periodic table as of January 2022?
a. 92
b. 118
c. 150
d. 200
2-What is the common name for the elements in Group 18 of the periodic table?
a. Halogens
b. Alkali metals
c. Noble gases
d. Transition metals
3-Which group of elements is known for its high reactivity, readily losing their outermost electron?
a. Alkali metals
b. Noble gases
c. Halogens
d. Lanthanides
4-What is the electron configuration of a neutral helium atom?
a. 1s²
b. 2s² 2p⁶
c. 3s² 3p⁶
d. 4s² 3d¹⁰
5-Which noble gas is used in neon signs to produce a red-orange glow?
a. Helium
b. Neon
c. Argon
d. Krypton
6-Which transition metal has the electron configuration 4s² 3d⁶?
a. Iron (Fe)
b. Titanium (Ti)
c. Cobalt (Co)
d. Nickel (Ni)
7-How many elements are in the first transition series, and which elements are part of this series?
a. 8; Scandium (Sc) to Iron (Fe)
b. 10; Scandium (Sc) to Zinc (Zn)
c. 18; Scandium (Sc) to Krypton (Kr)
d. 14; Scandium (Sc) to Iodine (I)
8-What is the group of elements characterized by having filled f-orbitals and includes elements like lanthanum and actinium?
a. Noble gases
b. Alkali metals
c. Inner transition elements
d. Halogens
9-What is the electronic configuration of Gadolinium (Gd)?
a. 4f⁷ 5d¹ 6s²
b. 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰
c. 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶
d. [Xe] 4f⁷ 5d¹ 6s²
10-What is the nearest noble gas configuration for the element Cd (Cadmium)?
a. [Ne] 4s² 3d⁶
b. [Kr] 5s² 4d⁶
c. [Ar] 4s² 3d¹⁰ 4p⁶
d. [Xe] 4d¹⁰ 5s²
The answers
1-Answer: b. 118
2-Answer: c. Noble gases
3-Answer: a. Alkali metals
4-Answer: a. 1s²
5-Answer: b. Neon
6-Answer: a. Iron (Fe)
7-Answer: b. 10; Scandium (Sc) to Zinc (Zn)
8-Answer: c. Inner transition elements
9-Answer: d. [Xe] 4f⁷ 5d¹ 6s²
10-Answer: b. [Kr] 5s² 4d⁶
Quiz: Periodic Table and Elemental Configurations (Part 4)
1-What is the significance of the period number in the periodic table?
a. It represents the number of valence electrons in the elements of that period.
b. It represents the number of energy levels in the elements of that period.
c. It indicates the number of isotopes in the elements of that period.
d. It determines the chemical reactivity of the elements in that period.
2-Which element belongs to the group of inner transition elements and is commonly used in nuclear reactors as a fuel?
a. Thorium (Th)
b. Titanium (Ti)
c. Technetium (Tc)
d. Tantalum (Ta)
3-In the electronic configuration of an element, what does the superscript number in an orbital notation represent?
a. The number of electrons in that orbital.
b. The atomic number of the element.
c. The energy level of the electron.
d. The position of the element in the periodic table.
4-Which group of elements is known for its high reactivity, readily gaining an electron to achieve a full outer electron shell?
a. Group 1 (alkali metals)
b. Group 18 (noble gases)
c. Group 7 (halogens)
d. Group 14 (carbon group)
5-Which element is used as a semiconductor material in electronic devices and solar cells?
a. Silicon (Si)
b. Sulfur (S)
c. Sodium (Na)
d. Silver (Ag)
6-What is the chemical symbol for the element with atomic number 53 in the periodic table?
a. Sn
b. I
c. Sb
d. Hg
7-Which group of elements is characterized by having filled f-orbitals and includes elements like gadolinium and uranium?
a. Alkaline earth metals
b. Inner transition elements
c. Halogens
d. Noble gases
8-What is the electronic configuration of a neutral nitrogen atom?
a. 1s² 2s² 2p³
b. 2s² 2p⁶
c. 1s² 2s² 2p⁶ 3s² 3p³
d. [Ne] 3s² 3p³
9-What is the main characteristic of alkali metals in terms of their reactivity?
a. They are highly unreactive.
b. They readily lose their outermost electron.
c. They are known for their variable oxidation states.
d. They form strong covalent bonds with other elements.
10-Which group of elements is known for having a full complement of electrons in their outermost energy level, making them stable and unreactive?
a. Alkali metals
b. Halogens
c. Noble gases
d. Transition metals
The answers
1-Answer: b. It represents the number of energy levels in the elements of that period.
2-Answer: a. Thorium (Th)
3-Answer: a. The number of electrons in that orbital.
4-Answer: c. Group 7 (halogens)
5-Answer: a. Silicon (Si)
6-Answer: b. I (Iodine)
7-Answer: b. Inner transition elements
8-Answer: a. 1s² 2s² 2p³
9-Answer: b. They readily lose their outermost electron.
10-Answer: c. Noble gases
Quiz: Periodic Table and Elemental Configurations (Part 5)
1-What is the primary factor responsible for the chemical reactivity of elements?
a. Atomic number
b. Mass number
c. Electron configuration
d. Number of protons
2-Which element is the most abundant in the Earth’s crust and is essential for life?
a. Iron (Fe)
b. Carbon (C)
c. Oxygen (O)
d. Silicon (Si)
3-In the periodic table, elements in the same __________ share similar chemical properties.
a. Row
b. Group
c. Period
d. Atomic number
4-Which group of elements is known for its high reactivity, especially with water, and includes elements like sodium and potassium?
a. Halogens
b. Alkaline earth metals
c. Noble gases
d. Alkali metals
5-Which of the following elements belongs to the lanthanide series?
a. Thulium (Tm)
b. Strontium (Sr)
c. Xenon (Xe)
d. Nickel (Ni)
6-What is the general trend for atomic size (atomic radius) as you move from left to right across a period in the periodic table?
a. Atomic size increases
b. Atomic size decreases
c. Atomic size remains constant
d. Atomic size varies randomly
7-Which group of elements is characterized by having partially filled d-orbitals and includes elements like iron and copper?
a. Alkali metals
b. Noble gases
c. Halogens
d. Transition metals
8-What is the electron configuration of a neutral chlorine atom?
a. 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶
b. 1s² 2s² 2p⁶ 3s² 3p⁵
c. 1s² 2s² 2p⁶ 3s² 3p⁶
d. [Ne] 3s² 3p⁵
9-Which element is commonly used in X-ray shielding due to its high atomic number and density?
a. Lead (Pb)
b. Mercury (Hg)
c. Copper (Cu)
d. Silver (Ag)
10-Which element is used in nuclear reactors as a moderator to slow down neutrons, enhancing the likelihood of nuclear fission?
a. Uranium (U)
b. Thorium (Th)
c. Beryllium (Be)
d. Plutonium (Pu)
The answers
1-Answer: c. Electron configuration
2-Answer: c. Oxygen (O)
3-Answer: b. Group
4-Answer: d. Alkali metals
5-Answer: a. Thulium (Tm)
6-Answer: b. Atomic size decreases
7-Answer: d. Transition metals
8-Answer: b. 1s² 2s² 2p⁶ 3s² 3p⁵
9-Answer: a. Lead (Pb)
10-Answer: c. Beryllium (Be)