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Chapter 8. Review. Chapter 8 Review. How is a period set up on the periodic table? Answer: left to right/horizontally. Chapter 8 Review. What is a catalyst? Answer = something that speeds up a reaction without ever changing itself. . Chapter 8 Review.

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Chapter 8

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Chapter 8 l.jpg

Chapter 8

Review


Chapter 8 review l.jpg

Chapter 8 Review

  • How is a period set up on the periodic table?

  • Answer: left to right/horizontally


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Chapter 8 Review

  • What is a catalyst?

  • Answer = something that speeds up a reaction without ever changing itself.


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Chapter 8 Review

  • What are some properties of metals?

  • Answer = has luster, good conductor of heat and electricity, is malleable and is ductile.


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Chapter 8 Review

  • Where are the representative elements on the periodic table?

  • Answer = Groups 1-2 and groups 13-18


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Chapter 8 Review

  • What are some properties of nonmetals?

  • Answer = Nonmetals are usually gases or brittle solids at room temperature. They are poor conductors of heat and electricity.


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Chapter 8 Review

  • What is a metalloid?

  • Answer = Metalloids share some properties with metals and some with nonmetals. They fall in a diagonal line directly between metals and nonmetals on the periodic table.


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Chapter 8 Review

  • How is a group (or family) set up on the periodic table?

  • Answer = up and down/vertically


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Chapter 8 Review

  • What are synthetic elements?

  • Answer = Synthetic elements are created by scientists in a lab.


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Chapter 8 Review

  • Where are the transition elements on the periodic table?

  • Answer = groups 3-12


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Chapter 8 Review

  • Which element is NOT part of the iron triad?

  • A. Nickel

  • B. Copper

  • C. Cobalt

  • D. Iron

  • Answer = B, copper


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Chapter 8 Review

  • Several groups contain only metals. Which group contains only nonmetals?

  • A. Group 1

  • B. Group 12

  • C. Group 2

  • D. Group 18

  • Answer = D, group 18


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Chapter 8 Review

  • A brittle, non-conducting, solid might belong to which of the following groups?

  • A. alkali metals

  • B. alkaline earth metals

  • C. actinide series

  • D. oxygen group

  • Answer = D, oxygen group


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Chapter 8 Review

  • Describe something that mercury is used for.

  • Answer = thermometers, barometers, and some dental materials


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Chapter 8 Review

  • Using the following element

    key, what is the element symbol?

  • Answer = H

Hydrogen

1

H

1.008


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Chapter 8 Review

  • Using the following element key, what is the atomic mass?

  • Answer = 1.008

Hydrogen

1

H

1.008


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Chapter 8 Review

  • Using the following element key, what is the atomic number (or number of protons)?

  • Answer = 1

Hydrogen

1

H

1.008


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Chapter 8 Review

  • Using the following element key, what is the element name?

  • Answer = Hydrogen

Hydrogen

1

H

1.008


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Chapter 8 Review

  • What do the following shapes represent when they are used on the periodic table?

  • Answer = balloon:gas, cube:solid, water droplet: liquid, circle inside circle:synthetic


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Chapter 8 Review

  • Which statement about the periodic table is TRUE?

  • A. Elements all occur naturally on Earth.

  • B. Elements occur in the order in which they were discovered.

  • C. Elements with similar properties occupy the same group.

  • D. Element are arranged in the order Mendeleev chose.

  • Answer = C, elements with similar properties occupy the same group.


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Chapter 8 Review

  • Which of the following is NOT a property of metals?

  • A. Malleability

  • B. Luster

  • C. Ductility

  • D. Poor conductor of heat and electricity

  • Answer = D b/c Metals are actually good conductors of heat and electricity.


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Chapter 8 Review

  • Which three elements make up the iron triad?

  • Answer = Iron, Cobalt and Nickel


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Chapter 8 Review

  • To which category do the three elements of the iron triad belong?

  • A. Nonmetals

  • B. Transition elements

  • C. Noble gases

  • D. Representative elements

  • Answer = B, transition elements


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Chapter 8 Review

  • How did Mendeleev arrange the first periodic table?

  • Answer = Mendeleev arranged the periodic table in order by atomic mass.


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Chapter 8 Review

  • How did Moseley improve the arrangement of the periodic table?

  • Answer = Moseley re-arranged the periodic table by order of increasing atomic number.


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Chapter 8 Review

  • Which of the following categories takes up the most space on the periodic table?

    • Metals, Nonmetals or Metalloids

  • Answer = Metals


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Chapter 8 Review

  • When Mendeleev arranged his first periodic table by atomic mass, he noticed that elements with similar __________ fell into groups on the periodic table.

  • Answer = properties


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Chapter 8 Review

  • Another word for atomic number is…

  • Answer = the number of protons


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Chapter 8 Review

  • Elements in which group can be used as catalysts?

  • A. Carbon

  • B. Oxygen

  • C. Platinum

  • D. Boron

  • Answer = C, platinum


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Chapter 8 Review

  • Group 1 on the periodic table can also be called what?

  • A. Halogens

  • B. Alkali Metals

  • C. Alkaline Earth Metals

  • D. Oxygen family

  • B, Alkali Metals


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Chapter 8 Review

  • Group 2 on the periodic table can also be called what?

  • A. Halogens

  • B. Alkali Metals

  • C. Alkaline Earth Metals

  • D. Oxygen family

  • Answer = Alkaline Earth Metals


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Chapter 8 Review

  • Which of the following statements about Iron is NOT correct?

  • A. Iron is found in the hemoglobin of red blood cells

  • B. Iron is a component of steel

  • C. Iron is a member of the iron triad

  • D. Iron is a metalloid

  • Answer = d, iron is a metal not a metalloid


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Chapter 8 Review

  • Who created the first version of the periodic table – Moseley or Mendeleev?

  • Answer = Mendeleev


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Chapter 8 Review

  • What is the name given to a row of elements in the periodic table whose densities and melting points change gradually and predictably?

  • Answer = a period


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Chapter 8 Review

  • Who chooses the names of chemical elements?

  • Answer = the person that discovers the elements gets to choose the name.


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Chapter 8 Review

  • Where are synthetic elements created? Why?

  • Answer = They are created in labs by scientists because they do not occur naturally.


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Chapter 8 Review

  • What three elements make up the Iron triad?

  • Answer = Iron, Cobalt and Nickel


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Chapter 8 Review

  • Why are the lanthanides and the actinides separated on the periodic table?

  • Answer = so that the table can fit easily on a page


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