Concept explainers
Interpretation:
Among the given elements, the one that is metal has to be chosen.
Concept Introduction:
Metals are elements that have characteristic properties of thermal conductivity, luster, electrical conductivity, and malleability. Except mercury, the physical state of all other metals is solids. They have very high melting points and high density.
Nonmetals are elements that are characterized by the absence of properties like thermal conductivity, luster, electrical conductivity, and malleability. Mostly nonmetals are gases. Only bromine is present as liquid in room temperature. The density of nonmetals is low and they have lower melting points than metals.
In the periodic table, a total of 23 elements are nonmetals. The metallic property of the elements decreases as moving from left to right across the period in a periodic table. The elements that are present in right side of the periodic table are nonmetals.
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General, Organic, and Biological Chemistry
- Which of the following element-classification pairings is incorrect? a. 7Nrepresentative element b. 26Fetransition element c. 75Reinnertransition element d. no correct responsearrow_forwardWhich of the following elements is located in the d area of the periodic table? a. 20Ca b. 26Fe c. 33As d. no correct responsearrow_forwardWhich of the following elements is a noble-gas element? a. 8O b. 9F c. 17Cl d. no correct responsearrow_forward
- The correct electron configuration for atoms of oxygen (element #8) is a. 1s22s23s24s2 b. 1s21p62s2 c. 1s22s22p4 d. no correct responsearrow_forwardHow many electrons are present in an atom of P1531? a. 15 b. 16 c. 31 d. no correct responsearrow_forwardWhich of the following pieces of information about an element is not found on a standard periodic table? a. chemical symbol b. atomic number c. mass number d. no correct responsearrow_forward
- Which of the following elements would have the same number of valence electrons as 7N? a. 6C b. 8O c. 15P d. no correct responsearrow_forwardHow many electrons are required to equal the mass of one proton? a. 1 b. 23 c. about 1800 d. no correct responsearrow_forwardThe element chlorine, which has two isotopic forms, has an atomic mass of 35.5 amu. This means that a. all chlorine atoms have a mass of 35.5 amu b. some, but not all chlorine atoms have a mass of 35.5 amu c. no chlorine atoms have a mass of 35.5 amu d. no correct responsearrow_forward
- How many electrons are present in atoms of the element whose electron configuration is 1s22s22p63s1? a. four b. eight c. eleven d. no correct responsearrow_forwardThe correct name for the binary ionic compound Cu2S is a. copper sulfide b. copper(I) sulfide c. copper(II) sulfide d. no correct responsearrow_forwardThe correct chemical symbol for the element beryllium, which contains the first two letters of the elements name, is a. be b. Be c. BE d. no correct responsearrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage Learning