(a)
Interpretation:
Aluminum has to be identified as metal, nonmetal or metalloid.
Concept Introduction:
Metals: Metals have the ability to conduct heat and electricity. They are solids are room temperature and present on the left of the periodic table. They have low ionization energy and low
Nonmetals: Nonmetals are poor conductors of heat and electricity. They are present on right of the periodic table. They have high ionization energy and high electron affinities. They gain electrons to form anions.
Metalloids: Metalloids are elements that have intermediate properties between metal and nonmetals. These are solids at room temperatures and forms alloys with other metals.
(b)
Interpretation:
Carbon has to be identified as metal, nonmetal or metalloid.
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
Germanium has to be identified as metal, nonmetal or metalloid.
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
Arsenic has to be identified as metal, nonmetal or metalloid.
Concept Introduction:
Refer to part (a).
(e)
Interpretation:
Selenium has to be identified as metal, nonmetal or metalloid.
Concept Introduction:
Refer to part (a).
(f)
Interpretation:
Tellurium has to be identified as metal, nonmetal or metalloid.
Concept Introduction:
Refer to part (a).
Want to see the full answer?
Check out a sample textbook solutionChapter 1 Solutions
ACHIEVE/CHEMICAL PRINCIPLES ACCESS 1TERM
- (c) Silicon (Si) is the most common chemical element in today's semiconductor industry. It has an atomic number of 14 and belongs to the Group IV (4) of the periodic table with its most common isotope being Si-29. (i) (ii) (iii) Explain what an isotope is. How many protons and how many neutrons are in the nucleus of this Silicon isotope? What is the electron configuration of Si?arrow_forward28. (a) In Figure P7.7, which sphere could represent a Na atom, Nation, and K atom? Provide an explanation for your choice. (b) In Figure P7.7, which sphere could represent an O atom, S atom, and S2- ion? Provide an explanation for your choice. FIGURE P7.7 (b) (c)arrow_forwardIn a 1911 paper, Ernest Rutherford said: In order to form some idea of the forces required to deflect an alpha particle through a large angle, consider an atom containing a point positive charge Ze at its center and surrounded by a distribution of negative electricity, – Ze uniformly distributed within a sphere of radius R. Derive an expression for the magnitude of the electric field at the center of the atom. - Express your answer using the parameters +Ze and -Ze.arrow_forward
- Na +, K +, Ca 2 +, and Mg 2 + are the four major cations in the body. For each cation, give the following information: (a) the number of protons; (b) the number of electrons; (c) the noble gas that has the same electronic confi guration; (d) its role in the body.arrow_forward2. (a) What do you understand by the statement: "the energy of the electrons in an atom is quantized"? (b) Why did Rutherford select alpha particles in his gold foil experiment? Briefly explain your answer in own words.arrow_forwardWrite an electron-dot symbol for each element: (a) beryllium; (b) silicon; (c) iodine; (d) magnesium; (e) argon.arrow_forward
- (d) the ion with 74 electrons, 116 neutrons, and a +3 chargearrow_forwardPredict and test the behavior of α particles fired at a “plum pudding” model atom.(a) Predict the paths taken by α particles that are fired at atoms with a Thomson’s plum pudding model structure.Explain why you expect the α particles to take these paths.(b) If α particles of higher energy than those in (a) are fired at plum pudding atoms, predict how their paths will differ from the lower-energy α particle paths. Explain your reasoning.(c) Now test your predictions from (a) and (b). Open the Rutherford Scattering simulation (http://openstaxcollege.org/l/16PhetScatter) and select the “Plum Pudding Atom” tab. Set “Alpha ParticlesEnergy” to “min,” and select “show traces.” Click on the gun to start firing α particles. Does this match your prediction from (a)? If not, explain why the actual path would be that shown in the simulation. Hit the pause button,or “Reset All.” Set “Alpha Particles Energy” to “max,” and start firing α particles. Does this match your prediction from (b)? If not,…arrow_forwardWrite the empirical formula corresponding to each of the following molecular formulas: (a) Al;Bre; (b) CeH10; (c) CH3O2; (d) P,O1o; (e) CsH«Cl2; (f) B3N3H6. Naturally occurring magnesium has the following isotopic abundances: Isotope Abundance Mass 24Mg 78.99% 23.98504 25M9 10.00% 24.98584 | 26M9 11.01% 25.98259 (a) What is the average atomic mass of Mg?arrow_forward
- A mass spectrometer is being used to separate common oxygen-16 from the much rarer oxygen-18, taken from a sample of old glacial ice. (The relative abundance of these oxygen isotopes is related to climatic temperature at the time the ice was deposited.) The ratio of the masses of these two ions is 16 to 18, the mass of oxygen-16 is 2.66 ✕ 10−26 kg, and they are singly charged and travel at 7.40 ✕ 106 m/s in a 1.40 T magnetic field. What is the separation (in m) between their paths when they hit a target after traversing a semicircle?arrow_forward(a) Identify the number of electrons in the ground-state outer shell of atomic oxygen (atomic number 8).(b) How many electrons are in the ground-state outer shell of fluorine?arrow_forwardExamine the ratio of atomic mass to atomic number for the elements with even atomic number through calcium. This ratio is approximately the ratio of the average mass number to the atomic number. (a) Which two elements stand out as different in this set of ten? (b) What would be the "expected" atomic mass of argon, based on the correlation considered here? (c) Show how the anomaly in the ordering of natural atomic masses of argon and potassium can be accounted for by the formation of “extra" 40 Ar via decay of 4°K atoms.arrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningIntroduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning