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Unit 3 milestone Exam Questions with Complete Solutions

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Ionic bonds and Covalent Bonds Physical Science Exam Questions and Answers Octet Rule - Correct Answers: Atoms gain or lose electrons to get a full outermost energy level. Metals - Correct Answers: They normally lose electrons during chemical reactions. Usually, form positive ions. Non-metals - Correct Answers: They normally gain electrons during chemical reactions. Usually form negative ions. Ion - Correct Answers: An atom that has an electrical charge. Anion - Correct Answers: An ion with a negative charge. Formed by gaining electrons Cation - Correct Answers: An ion with a positive charge. Formed by losing electrons. Chemical bonding - Correct Answers: The force that holds atoms together. Ionic bond - Correct Answers: a chemical bond between oppositely charged ions - metal bonded to non metal Electron dot diagram (aka Lewis structures) - Correct Answers: A shorthand representation of the valence electrons in an atom. How to write the formula for an ionic compound: - Correct Answers: write the symbol for your metal first, then your nonmetal second then kriss kross the signs Naming ionic compounds - Correct Answers: The name of the metal comes first, followed by the name of the nonmetal, changing the nonmetal's ending to "ide". ionic compounds - Correct Answers: form salts Ionic compounds will conduct electricity - Correct Answers: when dissolved in a liquid or when they are melted valence electrons - Correct Answers: outermost electrons which will determine bonding. covalent bond - Correct Answers: a chemical bond that results from the sharing of electrons - non metal bonded to non metal diatomic molecule - Correct Answers: elements that covalently bond with themselves to form a molecule, I Have No Bright or Clever Friends; I2, H2, N2, Br2, Cl2, F2 What's the formula for Sodium oxide? - Correct Answers: Na2O What's the formula for Magnesium Bromide - Correct Answers: MgBr2 What's the formula for Potassium Chloride - Correct Answers: KCl What's the formula for Dinitrogen Tetrasulfide - Correct Answers: N2S4 What's the formula for Nitrogen Triiodide - Correct Answers: NI3 What's the formula for carbon monoxide? - Correct Answers: CO What's the formula for Carbon Tetrachloride - Correct Answers: CCl4 What's the formula for Diphosphorus Pentoxide - Correct Answers: P2O5 What's the formula for Sulfur Trioxide - Correct Answers: SO3 Why are all the other elements jealous of the noble gases? - Correct Answers: Because they have a full valence What can you do if you want a full valence and you don't have one? - Correct Answers: Find another element and form a chemical bond with them Elements will ______, ______, or __________ electrons in order to obtain a full valence. - Correct Answers: gain, lose or share When an atom forms a chemical bond it becomes more - Correct Answers: STABLE (AND HAPPY!) Which types of compounds have a high melting and boiling point? - Correct Answers: Ionic Which types of compounds are poor conductors of electricity? - Correct Answers: Covalent What is the structure of an ionic compound? - Correct Answers: Crystals Atoms bond together so that they have a full _______________________. - Correct Answers: valence atoms are more ________________ when they combine with other atoms - Correct Answers: stable -ide - Correct Answers: suffix for the second element of anions and cations lose, positively, cations - Correct Answers: Metals usually (gain or lose) electrons and form (positively or negatively) charged _____________________. gain, negatively, anions - Correct Answers: Nonmetals usually (gain or lose) electrons and form (positively or negatively) charged _____________________. noble gases - Correct Answers: When atoms gain or lose electrons and become ions, they have the same electron configuration as which group on the periodic table? neutral - Correct Answers: What charge do atoms, molecules, and ionic compounds have?

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Institution
Unit 3 Milestone.
Course
Unit 3 Milestone.

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Unit 3 milestone Exam
Questions with Complete
Solutions
Which of the following involves tracking all project tasks to determine the overall budget health of a
project?




Analyzing expectations




Monitoring progress




Producing deliverables




Identifying stakeholders - Correct Answers: Monitoring progress



Which of the following is a key to success in leading projects and teams?




Allow team members to interact and disagree during team meetings.




Focus efforts on avoiding problems at all costs during a project.

,Use feedback to focus on pointing out mistakes team members make.




Provide broad suggestions and allow team members to find their own way. - Correct Answers: Allow
team members to interact and disagree during team meetings.



In the project status dashboard, what color will the deliverable be highlighted if it is likely there will be
delays in the schedule?




Green




Blue




Red




Yellow - Correct Answers: Yellow



Which of the following is NOT included in the status report?




Stakeholder expectations




Schedule updates

, Changes in deliverables




Budget status - Correct Answers: Stakeholder expectations



Which of the following best describes change management?




Defining, planning, and implementing adjustments to a project




Regularly communicating changes in project status to stakeholders




Tracking, monitoring, and protecting a project's critical path




Continuous assessment of overall project progress as compared to the project plan - Correct Answers:
Defining, planning, and implementing adjustments to a project



Which of the following must occur for a change request to be implemented?




Project sponsor approval




Creation of change plan

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Unit 3 Milestone.

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