Concept explainers
Interpretation:
The incorrect pairing of concepts has to be chosen from the given options.
Concept Introduction:
Elements in the periodic table are classified in several different ways and out of them two most common systems are,
- System based on the physical properties in which they are classified as metals and nonmetals.
- System based on electronic configuration in which they are classified as noble-gas, representative elements,
transition elements , or inner-transition elements.
Noble-gas elements are the ones that are located in far right of periodic table. The physical state of these elements at room temperature is gas. The noble gases have their electronic configuration ending with
Representative elements are the ones that are in s area and area of the periodic table. They have partially filled s subshell or p subshell in their electronic configurations. Some of the elements are nonmetals while others are metals.
Transition elements are the ones that are located in d area of periodic table. They have the distinguishing electrons in their d subshell. All the transition elements are metals.
Inner transition elements are the ones that are located in f area of the periodic table. They have the distinguishing electrons in their f subshell. All inner transition elements are metals.
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Chapter 3 Solutions
GENERAL,ORGANIC,+BIO.CHEM.-MINDTAP
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- By referring to the periodic table (Figure 2.15 or inside front cover), identify the group and period to which each of the following elements belongs. Then decide whether the element is a metal, nonmetal, or metalloid. a Se b Cs c Fe d Cu e Brarrow_forwardThe question is in the picture.arrow_forwardHow many electrons does each of the following elements have in its outer-most electron shell? (a) Magnesium (b) Cobalt (c) Seleniumarrow_forward
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- Which of the following elements below can be classified as metalloids? (select all which apply) Select 2 correct answer(s) Chlorine Carbon Arsenic Silicon Iron Sulfur Sodium 0000arrow_forwardProblem 2-4 (a) What are the atomic numbers of mercury (Hg) and lead (Pb)? (b) How many protons does an atom of each have? (c) If both Hg and Pb have 120 neutrons in their nuclei, what is the mass number of each? (d) Write the name and the symbol of each.arrow_forwardHow many electrons are present in an atom of P1531? a. 15 b. 16 c. 31 d. no correct responsearrow_forward
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