Questions and Answers
Into what four classes can elements be sorted based on their electron configurations?
representative elements, noble gases, transition metals, and inner transition metals
The period table displays the symbols and the __________ of the elements along with information about the structures of their __________.
names; atoms
Group 1A elements are called?
alkali metals
Group 2A elements are called?
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The elements in Group 1A through 7A are called __________.
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The nonmetals of Group 7A are________, and the __________ make up Group 8A.
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Between Groups 2A and 3A, there are ________ in periods 4 through 7 and ________ in periods 6 and 7.
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The atoms of the noble gas elements have their highest occupied s and ______ sublevels filled.
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The highest occupied s and p sublevels of the representative elements are__________.
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Classify this statement as always true, AT; sometimes true, ST; or never true, NT: Group A elements are representative elements.
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Classify this statement as always true, AT; sometimes true, ST; or never true, NT: Chlorine has the electron configuration li2i2p63i3p7.
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The element in Group 4A, period 3, is?
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The nonmetals of Group 7A are?
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An element in which the highest occupied s and p sublevels are filled is called?
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Group 2A elements are?
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An element whose highest occupied s sublevel and a nearby d sublevel contains electrons is called?
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An element whose highest occupied s sublevel and a nearby f sublevel generally contains electrons is called?
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Group 1A elements are?
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An element whose highest occupied s or p sublevels are partially filled is called?
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List the electron configurations for the highest occupied energy level of the elements in period 3 from left to right.
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List the elements of Group 6A. Tell whether each is a solid, liquid, or gas at room temperature and whether it is a metal, nonmetal, or metalloid.
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Using the specified figures, write the electron configurations of the following elements: a. Carbon b. Strontium c. Vanadium.
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Study Notes
Classification of Elements
- Elements are classified based on electron configurations into four categories: representative elements, noble gases, transition metals, and inner transition metals.
Periodic Table Essentials
- The periodic table includes symbols, names, and critical information about the atomic structure of elements.
Group Names
- Group 1A elements are known as alkali metals, while Group 2A elements are called alkaline earth metals.
- Elements in Groups 1A through 7A are referred to as representative elements.
- Group 7A features nonmetals, called halogens, and Group 8A elements are the noble gases.
Transition and Inner Transition Metals
- Transition metals are located between Groups 2A and 3A in periods 4 through 7.
- Inner transition metals are found in periods 6 and 7.
Noble and Representative Element Characteristics
- Noble gas atoms have their highest occupied s and p sublevels completely filled.
- Representative elements have unfilled highest occupied s and p sublevels.
Classification of Statements
- The statement "Group A elements are representative elements" is sometimes true (ST).
- The electron configuration "Cl has the electron configuration li2i2p63i3p7" is never true (NT).
- The assertion "The element in Group 4A, period 3, is gallium" requires clarification (no classification provided).
Group 6A Elements
- Group 6A elements and their states at room temperature:
- O₂: gas, nonmetal
- S: solid, nonmetal
- Se: solid, nonmetal
- Te: solid, metalloid
- Po: solid, metal
Electron Configurations in Period 3
- Electron configurations for period 3 elements from left to right:
- Na: 3s¹
- Mg: 3s²
- Al: 3s²3p¹
- Si: 3s²3p²
- P: 3s²3p³
- S: 3s²3p⁴
- Cl: 3s²3p⁵
- Ar: 3s²3p⁶
Element Classifications
- The following classifications apply to specific types of elements:
- Halogens: nonmetals in Group 7A.
- Noble gases: elements with filled highest occupied s and p sublevels.
- Alkaline earth metals: elements in Group 2A.
- Transition metals: elements with highest occupied s sublevel and nearby d sublevels containing electrons.
- Inner transition metals: elements whose highest occupied s sublevel and a nearby f sublevel generally contain electrons.
- Alkali metals: elements in Group 1A.
- Representative elements: those with partially filled highest occupied s or p sublevels.
Electron Configurations for Specific Elements
- Electron configurations for specified elements:
- Carbon: 1s²2s²2p²
- Strontium: 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶5s²
- Vanadium: 1s²2s²2p⁶3s²3p⁶3d³4s²
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Description
Test your knowledge on classifying elements with these flashcards. This quiz covers topics such as representative elements, noble gases, and transition metals. Perfect for reinforcing your understanding of the periodic table and electron configurations.
