MULTIPLE CHOICE 13-15 ONLY 5. Why are valence electrons important in identifying the group of an element ? BecauseA. valence electrons can be described as the innermost shell of an atomB. valence electrons described the location of the electrons in the outermost shell of an atomC. valence electrons remains to its orbitalsD. valence electrons are constant6. Unlike other noble gases, helium has two electrons. What makes helium a noble gas or stable element?A.. According to octet rule, helium completed its electron on the outer shellB. Helium belongs to group 8AC. According to octet rule, helium is a non-metalD. According to Hund's helium occupied 1 box with 2 max electrons7. Which of the following has a molecular geometry of tetrahedral?B. CCl,F2D. C20С. CS28. In which compound is hydrogen bonding found?A. ammonia B. carbonic acidA. SF2C. dolomiteD. sodium chloride9. How can a molecule become nonpolar if it contains polar bonds?A. If the molecules has a symmetrical geometry and has all bonds are the same, the bond dipolescancel and the molecule is non polar.B. If the atoms are C or H onlyC. If the atoms have big electronegativity difference but are linearD. If atoms are not belong to the noble gases10. Many organic solvents boil below 200 °C because of covalent bonding, while solids, such as copper,do not melt until thousands of °C because the atoms formA. hydrogen bondB. polar bond11. Which statement is correct about Isomerism?C. IONIC BONDvi D. NONPOLAR bondA. They differ in both physical and chemical properties.B. They have the different molecular formula.C. Chain isomers differ in the arrangement of their skeletonD. They have the same molecular formula.12. What reaction takes place when a substance reacts with oxygen gas, releasing energy in the form of light andheat?C. CombustionD. SaponificationA. Addition200 1B. Condensation13. Which of the following would undergo addition reactions?A. halogenB. alkyne14.Which of the following organic compound will form when a carboxylic acid and an alcohol undergoC. alkaneD. alcoholcondensation reaction?A. new C-C bondC. new N-O bondB. new O-C bondD. ester15. Which of the following types of reaction happens when alkene reacts with water yields in the production ofalcohol?A. SaponificationB. CondensationC. CombustionD. Addition

Ans. 13. Option B is correct: Alkyne Reason: In organic synthesis, an addition reaction is a type…

Answered: addition reactions?

Science

Chemistry

addition reactions?

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter12: Chemical Bonding

Section: Chapter Questions

Problem 47CR: Which of the following statements is correct and provides the best explanation when removing the...

See similar textbooks

Similar questions

What are bus? How are ions formed from atoms? Do isolated atoms form ions spontaneously? To what do the termscationandanionrefer? In terms of subatomic particles, how is an ion related to the atom from which it is formed? Does the nucleus of an atom change when the atom is converted into an ion? How can the periodic table be used to predict what ion an element’s atoms will form?
Which simple ion would each of the following elements he expected to form? What noble gas has an analogous electron configuration to each of the inns? msp;a.chlorine,Z=17b.strontium,Z=38c.oxygen,Z=8d.rubidium,Z=37
Part A: How many valence electrons does krypton (atomic #36) have? Part B: How many valence electrons does Chlorine (atomic #17) have? Part C: How many valence electrons does lead (atomic#82) have? Part D: How many valence electrons does barium (atomic #56) have?
How many electrons are in a tin atom? Give the number of electrons in each shell. How many valence electrons are there in a tin atom? Write the valence-shell configuration for tin.
SbF4- has 34 valence electrons. How many total electrons are in the Sb expanded outer shell?
1.) Assuming that the octet rule is obeyed, write out the electron configuration for the ion formed by the element chlorine, Cl. This ion is a(n) (cation or anion) with a charge of _____ and has the same electron configuration as the noble gas ______. 2.) A monatomic ion with a charge of +2 has an electronic configuration of1s22s22p63s23p64s23d104p6. This ion is a(n) cation or anion? It has the same electron configuration as the noble gas ______. The symbol for the ion is:
1. How is the valence electron configuration of the noble gases related to their stability? What is the octet rule? 2. How are ions formed?
Now, we will investigate diatomic molecules, those that are made up of two of the same type of atom. Select 2 fluorine atoms. How many valence electrons are in each fluorine atom? Is a fluorine atom a metal or a non-metal? Did the combination of these atoms create a covalent or ionic bond? How are the valence electrons organized to form a bond between these atoms? How is this different from the ionic bonds formed in the previous part of the activity?
(a) What are valence electrons? (b) How many valence electrons does a nitrogen possess? (c) An atom has the electron configuration 1s22s22p63s23p2. How many valence electrons does the atom have?
Which group of metals are the most reactive metals? How many valence electrons does this group of metals have?
How do Group VIA elements form ions? A) They lose protons B) They gain two protons C) They lose two electrons D) They gain two electrons Which substance consists of anions and cations? A) CaF2, Calcium Fluoride B) Br2, Bromine C) Ag, Silver D) SiO2, Silicon Dioxide A newly discovered element is assigned to Group VIIA (Group 7A) in the periodic table. What charge will ions of this new element have? A) 1- B) 2- C) 1+ D) 2+ Reactions occur when atoms, ions or molecules collide. In a reaction between magnesium and bromine atoms, how many atoms of bromine will react per atom of magnesium? A) 1 B) 2 C) 3 D) 4 Which compound exists as a solid crystal lattice of cations and anions at room temperature? A) BrCl B) CaCl2 C) SCl2 D) SiCl4
2. List the 4 types of suborbitals from least to greatest energy and list how many electrons each can contain3. Give the electron configuration and Noble Gas configuration for each: For ions, remember electrons are lost when cations are formed and gained when anions are formed. Mg Mg2+ Fe Fe2+ S S2- Ca Ca2+ Br Br-4. How many valence electrons in Groups 1,2,3,5,6,7,8A?5. Identify by group number (Ex. (1A, 16A, etc) the alkali metals, alkaline earth metals, halogens, and noble gases.5. Describe the periodic trends across a row and down a column for Atomic Radius, Metallic Character and Ionization Energy. Explain why the trends behave as they do.