(a)
Interpretation: For the given pair of elements the three properties that show chemical stability between them should be determined.
Concept Introduction:
Periodic Table: The available chemical elements are arranged considering their
In periodic table the horizontal rows are called periods and the vertical column are called group. There are seven periods and 18 groups present in the table and some of those groups are given specific name as follows,
Atomic Number: Atomic number of the element is equal to the number of protons present in the nucleus of the element which is denoted by symbol Z. The superscript presents on the left side of the
Cation: Removal of electron from the atom results to form positively charged ion called cation.
Anion: Addition of electron to atom results to form negatively charged ion called anion.
The net charge present in the element denotes the presence or absence of electrons in the element.
In periodic table the horizontal rows are called periods and the vertical column are called group.
Oxidizing agent: The chemical substance is considered as oxidizing agent if it is capable of accepting more electrons which oxidizes the other substance and getting reduced by itself.
Electronic configuration: It is used to denote the distribution of electrons placed over orbitals that present in the atom.
The rules followed by the electrons are as follows,
The electrons gets distributed starting from lower energy orbital to higher energy orbital, pairing of electrons starts after all the orbitals are singly filled and finally, no two electrons that have same spin can occupy the same orbital.
To Explain: The similar chemical properties for the given set of elements.
(b)
Interpretation: For the given pair of elements the three properties that show chemical stability between them should be determined.
Concept Introduction:
Periodic Table: The available chemical elements are arranged considering their atomic number, the electronic configuration and their properties. The elements placed on the left of the table are metals and non-metals are placed on right side of the table.
In periodic table the horizontal rows are called periods and the vertical column are called group. There are seven periods and 18 groups present in the table and some of those groups are given specific name as follows,
Atomic Number: Atomic number of the element is equal to the number of protons present in the nucleus of the element which is denoted by symbol Z. The superscript presents on the left side of the symbol of the element.
Cation: Removal of electron from the atom results to form positively charged ion called cation.
Anion: Addition of electron to atom results to form negatively charged ion called anion.
The net charge present in the element denotes the presence or absence of electrons in the element.
In periodic table the horizontal rows are called periods and the vertical column are called group.
Oxidizing agent: The chemical substance is considered as oxidizing agent if it is capable of accepting more electrons which oxidizes the other substance and getting reduced by itself.
Electronic configuration: It is used to denote the distribution of electrons placed over orbitals that present in the atom.
The rules followed by the electrons are as follows,
The electrons gets distributed starting from lower energy orbital to higher energy orbital, pairing of electrons starts after all the orbitals are singly filled and finally, no two electrons that have same spin can occupy the same orbital.
To Explain: The similar chemical properties for the given set of elements.
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Chemistry: Atoms First
- Arrange in order of increasing nonmetallic character. (Use the appropriate <, =, or > symbol to separate substances in the list.) (a) the Period 4 elements V, Ge, and K (b) the Group 5A elements N, As, and Bi Arrange in order of increasing atomic size. (Use the appropriate <, =, or > symbol to separate substances in the list.) (a) the Period 3 elements Mg, Si, and Ar (b) the Group 2A elements Ca, Ba, and Srarrow_forwardAtoms of each of the following elements are essential for life. Give the group name for the following elements:(a) chlorine(b) calcium(c) sodium(d) sulfurarrow_forward(b) A new element, "X", is discovered and found to have 2 electrons in its outer level. Is X a metal or non-metal? Predict the formula its ion would have in any ionic compounds it forms.arrow_forward
- 3. Classify each of the following elements as a noble gas, a representative element, a transition element, or an inner-transition element. Also state whether the element is paramagnetic or diamagnetic: (a) potassium; (b) phosphorous; (c) promethium; (d) platinum; (e) krypton.arrow_forwardHi, can someone pls tell me if these answers are correct and help me find the answers to the ones I didn't know, thanks ?arrow_forwardClassify each of the following elements as a main-group or transition element. Also,specify whether they are metals, metalloids, or nonmetals: Na, Re, S, I, Kr, Mg, U, Si, B, Al, As, H.arrow_forward
- When a nonmetal oxide reacts with water, it forms anoxoacid with the same nonmetal oxidation state. Give the name and formula of the oxide used to prepare each of these oxoacids:(a) hypochlorous acid; (b) chlorous acid; (c) chloric acid; (d) perchloric acid; (e) sulfuric acid; (f ) sulfurous acid; (g) nitricacid; (h) nitrous acid; (i) carbonic acid; ( j) phosphoric acid.arrow_forwardHow many valence electrons does an element in each group contain: (a) 2A; (b) 4A; (c) 7A?arrow_forwardNa +, 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_forward
- Examine 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_forwardArrange in order of increasing atomic size. (a) the period 3 elements Cl, Na, and Ar (b) the Group 2A elements Ca, Be, and Mgarrow_forwardFill in the blanks:(a) The symbol and atomic number of the heaviest nonradioac-tive noble gas are __and__ .(b) The symbol and group number of the Period 5 transition ele-ment whose atoms have the fewest protons are __ and __ .(c) The elements in Group 6A(16) are sometimes called thechalcogens.The symbol and atomic number of the first metallicchalcogen are__ and __ .(d) The symbol and number of protons of the Period 4 alkalimetal atom are __and __.arrow_forward
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