(a)
Interpretation:
From the given set of elements
Concept introduction:
In column the ionic radii or atomic radii is always increases, as the
In period the ionic radii or an atomic radius is always decrease due to the nuclear charge increases.
(b)
Interpretation:
From the given set of elements
Concept introduction:
Electronegativity is a measure of how strongly atoms attract bonding electrons to themselves.
(c)
Interpretation:
From the given set of elements
(d)
Interpretation:
From the given set of elements
Concept introduction:
Oxidation number:
Oxidation number means the total number of electron that an atom either gains or loses in order to form a
(e)
Interpretation:
From the given set of elements
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Check out a sample textbook solutionChapter 19 Solutions
General Chemistry: Atoms First
- Consider the elements O, Ba, Co, Be, Br, and Se. From this list,select the element that (a) is most electronegative, (b) exhibitsa maximum oxidation state of +7, (c) loses an electronmost readily, (d) forms π bonds most readily, (e) is a transitionmetal, (f) is a liquid at room temperature and pressure.arrow_forwardWrite a balanced equation for the reaction of elemental strontium with each of the following:(a) oxygen(b) hydrogen bromide(c) hydrogen(d) phosphorus(e) waterarrow_forwardIdentify the following hydrides as ionic, metallic, or molecular:(a) B2H6, (b) RbH, (c) Th4H1.5.arrow_forward
- (a) The third row element with the largest first ionization energy. (b) The Group 3A element with the largest first ionization energy. (c) The Group 3A element with the largest atomic radius.arrow_forwardWhich of the following statements are true?(a) Both nitrogen and phosphorus can form a pentafluoridecompound.(b) Although CO is a well-known compound, SiO does notexist under ordinary conditions.(c) Cl2 is easier to oxidize than I2.(d) At room temperature, the stable form of oxygen is O2,whereas that of sulfur is S8.arrow_forwardThe elements sodium, aluminum, and chlorine are in the same period. (a) Which has the greatest electronegativity? (b) Which of the atoms is smallest? (c) Which is the largest possible oxidation state for each of these elements? (d) Will the oxide of each element in the highest oxidation state (write its formula) be acidic, basic, or amphoteric?arrow_forward
- Draw a Lewis structure for each species:(a) The cyclic silicate ion Si6O1812-(b) A cyclic hydrocarbon with formula C6H12arrow_forward(a) What are the common oxidation states of the halogens?(b) Give an explanation based on electron configuration for the range and values of the oxidation states of chlorine.(c) Why is fluorine an exception to the pattern of oxidation states found for the other group members?arrow_forwardElement X is a metal with a valency 2. Element Y is a non-metal with a valency 3 (a) Write equations to show how X and Y form ions. (b) If Y is a diatomic gas, write the equation for the direct combination of X and Y to form a compound.arrow_forward
- Write a balanced chemical equation for the reaction of an excess of oxygen with each of the following. Remember that oxygen is a strong oxidizing agent and tends to oxidize an element to its maximum oxidation state.(a) Mg(b) Rb(c) Ga(d) C2H2(e) COarrow_forward(a) Which poisonous gas is evolved when white phosphorus is heated with Cone. NaOH solution? Write the chemical equation. (b) Write the formula of first noble gas compound prepared by N. Bartlett. What inspired N. Bartlett to prepare this compound? (c) Fluorine is a stronger oxidising agent than chlorine. Why? (d)Write one use of chlorine gas.arrow_forwardWrite a balanced equation for each of the following: (a) A characteristic reaction of Group 1A(1) elements: chunks of sodium react violently with water to form hydrogen gas and sodium hydroxide solution. (b) The destruction of marble statuary by acid rain: aqueous nitric acid reacts with calcium carbonate to form carbon dioxide, water, and aqueous calcium nitrate. (c) Halogen compounds exchanging bonding partners: phosphorus trifl uoride is prepared by the reaction of phosphorus trichloride and hydrogen fl uoride; hydrogen chloride is the other product. The reaction involves gases only.arrow_forward
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