Interpretation:
The given elements are to be classified as metals, metalloids, and non-metals.
Concept introduction:
Metals are present on the left side of the periodic table. These are mainly solid at room temperature and are good conductors of electricity and heat.
Non-metals lie on the top right of the periodic table. Non-metals are either solids or gases at room temperature and are poor conductors of heat and electricity.
The elements which show the properties of both metals and non-metals are known as metalloids.
The periodic table shows the metals in blue color, non-metals in shale-yellow color, and metalloids in orange color.
Answer to Problem 1QP
Solution:
(a) Metal
(b) Metalloid
(c) Non-metal
(d) Non-metal
(e) Metal
(f) Metal
(g) Metalloid
(h) Metal
Explanation of Solution
a) Cs
Cs appears on the left end of the periodic table. This is usually solid at room temperature and is a good conductor of heat and electricity.
Hence, this element is a metal.
b) Ge
Ge shows the properties of both metals and non-metals. It exists as a semiconductor.
Hence, this element is a metalloid.
c) I
I appears on the extreme right of the periodic table. It exists as a solid at room temperature and is a poor conductor of heat and electricity.
Hence, this element is a non-metal.
d) Kr
Kr appears on the extreme right of the periodic table. It exists as a gas in the atmosphere and is a poor conductor of heat and electricity.
Hence, this element is a non-metal.
e) W
W appears on the left end of the periodic table. This is usually solid at room temperature and is a good conductor of heat and electricity. W has a tendency to lose electrons from its outermost shell.
Hence, this element is a metal.
f) Ga
Ga appears on the left end of the periodic table. This is usually solid at room temperature and is a good conductor of heat and electricity. Ga has a tendency to lose electrons from its outermost shell.
Hence, this element is a metal.
g) Te
Te shows the properties of both metals and non-metals. It exists as a semiconductor.
Hence, this element is a metalloid.
h) Bi
Bi appears on the left end of the periodic table. This is usually solid at room temperature and is good conductor of heat and electricity.
Hence, this element is a metal.
Want to see more full solutions like this?
Chapter 24 Solutions
Chemistry
- (a) Briefly describe how the atomic radii and ionization energies of group 1A(1) elements compared with those of group 8A(18). Also, explain why the values of these properties are so different between these two groups. 2.arrow_forwardEnlist and explain the ores of Beryllium and methods of production of Beryllium.arrow_forwardA chemist, during the course of an analysis, runs across a chemical composed of carbon, hydrogen, and oxygen in the proportion 1:2:1 and having a six-sided molecular shape. It is probably (a) a pentose, (b) an amino acid, (c) a fatty acid, (d) a monosaccharide, (e) a nucleic acid.arrow_forward
- Which description correctly describes a difference between the chemistry of oxygen and sulfur?(a) Oxygen is a nonmetal and sulfur is a metalloid. (b) Oxy- gen can form more than four bonds, whereas sulfur cannot. (c) Sulfur has a higher electronegativity than oxygen.(d) Oxygen is better able to form p bonds than sulfur.arrow_forward17 16 15 14 13 12 11 D Nombre de protons Nombre de neutrons Carbon: C 6 Hydrogen: H 1 Oxygen: O 8 8 1- Distinguish between an element and a compound. 2- Deduce that ethanol is a compound substance. 3- Determine the number of electrons of an atom of element O. 4- Identify the atoms D, B and E. 3- Choose from the following formulas the ones that represent the ethanol molecule: on DBE, D,B,E D,BE, 81 Mass Numberarrow_forwardDescribe the chemical and physical properties of Potassium ?arrow_forward
- Predict whether each of the following oxides is acidic, basic,amphoteric, or neutral: (a) NO2, (b) CO2, (c) Al2O3, (d) CaO.arrow_forwardQuarks...: combine to make hadrons, have fractional charge and come in six flavours combine to make hadrons, have whole-number charges and come in six flavours combine to make hadrons, have fractional charges and come in four flavours combine to make hadrons, have whole-number charges and come in four flavoursarrow_forwardWrite out the nuclear energy configuration (energy configuration of protons and neutrons in the nucleus, nuclear orbitals) of Calcium-40 and use it to explain why Ca-40 is an exceptionally stable and the most common isotope of Ca.arrow_forward
- The first three ionization energies of an element X are 900, 1745, and 14912 kJ·mol–1. What is the most likely formula for the stable ion of X?arrow_forwardExplain in detail, showing the chemical equilibrium reactions and equations, why the anions of the group Barium and Calcium do not precipitate with a solution of Ba (NO3) 2 in an acidic environment.arrow_forwardPredict the products from the following chemical reactions. (a) HNO3 + Ba(OH)2 ⟶ (b) CaCl2 + CsOH ⟶ (c) Ammonium Phosphate + Magnesium Sulfate ⟶arrow_forward
- General 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 LearningLiving By Chemistry: First Edition TextbookChemistryISBN:9781559539418Author:Angelica StacyPublisher:MAC HIGHER