(a)
Interpretation:
The group
Concept introduction:
Electronegativity is the property of an atom which increases with its tendency to attract the electrons of a bond.
(b)
Interpretation:
The group
Concept introduction:
An element whose properties is intermediate between those of metals and solid non-metals are semimetals. Their conductivity behavior is intermediate between a metal and an insulator.
(c)
Interpretation:
The group
Concept introduction:
Radioactivity is defined as spontaneous degeneration of its nucleus accompanied by the emission of alpha particles, beta particles, or gamma rays. The element that exhibits radioactivity is known as radioactive element.
(d)
Interpretation:
The group
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General Chemistry: Atoms First
- Write balanced chemical equations for the following reactions:(a) metallic aluminum burned in air(b) elemental aluminum heated in an atmosphere of chlorine(c) aluminum heated in hydrogen bromide gas(d) aluminum hydroxide added to a solution of nitric acidarrow_forwardGive the name and symbol or formula of a Group 4A(14) el-ement or compound that fits each description or use:(a) Hardest known natural substance(b) Medicinal antacid(c) Atmospheric gas implicated in the greenhouse effect(d) Water proofing polymer based on silicon(e) Synthetic abrasive composed entirely of elements in thegroup(f) Product formed when coke burns in a limited supply of air(g) Toxic metal found in plumbing and paintsarrow_forwardGive the name and symbol or formula of a Group 5A(15)element or compound that fits each description or use:(a) Hydride produced at multimillion-ton level(b) Element(s) essential in plant nutrition(c) Hydride used to manufacture rocket propellants and drugs(d) Odd-electron molecule (two examples)(e) Amphoteric hydroxide with a 5A element in its 3 state(f) Phosphorus-containing water softener(g) Element that is an electrical conductorarrow_forward
- Write a balanced equation for the reaction of elemental boron with each of the following (most of these reactions require high temperature): (a) F2 (b) O2arrow_forwardWrite 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_forwardState a reason for each of the following statements: (i) Fluorine never exhibits any positive oxidation state. (ii) Helium does not form any real chemical compounds.arrow_forward
- Indicate the physical state for each of the following elements at 25 °C and normal pressure. Classify each element as a metal, nonmetal, or semimetal: (a) barium (b) boron (c)bismuth (d) brominearrow_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_forwardWhat is a disproportionation reaction, and which of thefollowing fit the description?(a) I₂(s) +KI(aq) →KI₃(aq)(b) 2ClO₂(g) +H₂O(l) →HClO₃(aq) +HClO₂(aq)(c) Cl₂(g)+ 2NaOH(aq)→ NaCl(aq)+ NaClO(aq)+ H₂O(l)(d) NH₄NO₂(s)→ N₂(g) +2H₂O(g)(e) 3MnO₄²⁻(aq)+ 2H₂O(l) →2MnO₄(aq) +MnO₂(s) +4OH(aq)(f) 3AuCl(s) →AuCl₃(s)+ 2Au(sarrow_forward
- Write a balanced equation for each of the following reactions:(a) Sulfur dioxide reacts with water. (b) Solid zincsulfide reacts with hydrochloric acid. (c) Elemental sulfurreacts with sulfite ion to form thiosulfate. (d) Sulfur trioxideis dissolved in sulfuric acid.arrow_forwardGive the name and symbol or formula of a Group 4A(14) element or compound that fits each description or use:(a) Hardest known natural substance(b) Medicinal antacid(c) Atmospheric gas implicated in climate change(d) Gas that binds to Fe(II) in blood(e) Element used in the manufacture of computer chipsarrow_forwardWhich of the following statements are true?(a) Si can form an ion with six fluorine atoms, SiF62-,whereas carbon cannot.(b) Si can form three stable compounds containing two Siatoms each, Si2H2, Si2H4, and Si2H6.(c) In HNO3 and H3PO4 the central atoms, N and P, havedifferent oxidation states.(d) S is more electronegative than Se.arrow_forward
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning