Interpretation:
The three indicated red element and their group should be determined. Whether these elements are catrgorized as metals, nonmetal or semimetals should be determined. Also, whether these elements should be expected to have similar or different properties should be determined.
Concept introduction:
Periodic table represents a systematic arrangement of elements according to their chemical and physical properties. Here, elements are represented as a two-letter symbol and are arranged in increasing order of
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
EBK CHEMISTRY
- Given that the periodic table is an organizational scheme for the elements, what might be some other logical ways in which to group the elements that would provide meaningful chemical information in a periodic table of your own devising?arrow_forwardAtoms of the same type can have different mass numbers. These atoms are called "isotopes". Consider two electrically-neutral isotopes of carbon (C): . One carbon atom has a mass number of 12. One carbon atom has a mass number of 14. . (A) Which subatomic particle (protons, neutron, electron) do these two atoms have in common? How are they similar? (B) Which subatomic particle (protons, neutron, electron) is different among these two atoms? How are they different?arrow_forwardHelium is an inert gas, meaning that it doesn't readily combine with other elements. What five other elements would you also expect to be inert gases? (See the periodic table in the Study Area.)arrow_forward
- Only two isotopes of boron (B) occur in nature; theiratomic masses and abundances are given in the followingtable. Complete the table by computing the relative atomicmass of 11B to four significant figures, taking the tabulatedrelative atomic mass of natural boron as 10.811.Isotope % Abundance Atomic Mass10B 19.61 10.01311B 80.39 ?arrow_forward1. Describe briefly, indicating the scientist responsible, experiments that gave the following evida,riee7RT¬the model of an atom:a) The atom consists of a very tiny, thickly dense positively charged nucleus, surrounded by a negatively charged electron cloud.b) The nucleus contains a specific number of protons, positively charged particles that gives the atomic number.c) Neutrons together with the protons in the nucleus account for the atomic weight.arrow_forwardSilicon is the foundation of today's Microelectronics.a) Indicate which other elements from group IV of the periodic table find applications in electronics, pointing out their usefulness.b) Similarly, composite materials using elements from groups III-V are widely used. Name at least 3 of these compounds, exemplifying their respective applications.arrow_forward
- Identify the three elements indicated on the periodic table, and give the group that they are in. Classify these elements as metals, nonmetals, or semimetals. Would you expect these elements to have similar or different chemical reactivity?arrow_forwardThe average atomic mass of lithium is 6.925 amu. Lithium has two natural isotopes. The larger one has a 92.5% abundance and is 1 u larger than the smaller isotope. Dtermine the isotopes.arrow_forwardThere are three main regions of the periodic table. Choose one element from each of these regions and list the following for all three of them: a) it's symbol and the region to which it belongs b) the period and group number in which it resides c) it's atomic number Example: (Do not use these elements as your examples!) • Aluminum (Al) is an element located in the metal region of the periodic table in Group 3A, Period 3. It's atomic number is 13. . Bromine (Br) is an element located in the nonmetal region of the periodic table in Group 8A, Period 4. It's atomic number is 35. Antimony (Sb) is an element located in the metalloid region of the periodic table in Group 5A, Period 5. It's atomic number is 51.arrow_forward
- Chlorine (Cl) and oxygen form four different binary compounds. Analysis gives the following results:CompoundMass of O Combinedwith 1.0000 g ClA 0.22564 gB 0.90255 gC 1.3539 gD 1.5795 g(a) Show that the law of multiple proportions holds for thesecompounds.(b) If the formula of compound A is a multiple of Cl2O, thendetermine the formulas of compounds B, C, and D.arrow_forwardIron exists in nature as a mixture ofpredominantly three isotopes:26Fe (53.94 amu),56neFe (55.93amu), and 57,26Fe (56.94 amu). If themost common isotope,26Fe,accounts for 91.75% of iron atoms,and the average atomic mass ofiron is 55.85 amu, what is thepercent abundance of the rarest ofthese three isotopes of iron?arrow_forwardThe element oxygen has three naturally occurring isotopes, with8, 9, and 10 neutrons in the nucleus, respectively. (a) Write thefull chemical symbols for these three isotopes. (b) Describethe similarities and differences between the three kinds ofatoms of oxygen.arrow_forward
- World of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage LearningChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning