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Chapter 3 – The Periodic Table

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Chapter 3 – The Periodic Table. Review. Match the following scientist to the characteristics of their periodic tables. __ Mendeleev A. Followed the Law of Octaves __ Dobereiner B. Ordered elements according to increasing atomic mass. __ Mosley C. Grouped elements in triads

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match the following scientist to the characteristics of their periodic tables
Match the following scientist to the characteristics of their periodic tables.

__ Mendeleev A. Followed the Law of Octaves

__ Dobereiner B. Ordered elements according to increasing atomic mass.

__ Mosley C. Grouped elements in triads

__ NewlandsD. Ordered elements according to increasing atomic number.

match the following scientist to the characteristics of their periodic tables1
Match the following scientist to the characteristics of their periodic tables.

B Mendeleev A. Followed the Law of Octaves

CDobereiner B. Ordered elements according to increasing atomic mass.

D Mosley C. Grouped elements in triads

A NewlandsD. Ordered elements according to increasing atomic number.

slide5

What is the periodic law?

The statement that the physical and chemical properties of the elements repeat in a regular pattern when they are arranged in order of increasing atomic number.

which elements are known as the representative elements
Which elements are known as the representative elements?

The representative elements are those elements that are found in group 1, 2 and 13-18. (Also know as groups 1A, 2A, and 3A-18A)

slide9

What element can be found in group 13 period 2?

Boron

What type of element is it?

Metalloid

slide10

Which of the following elements are generally gases or brittle, dull-looking solids, and poor conductors of heat and electricity?

Copper Phosphorus Platinum Argon

Bromine Selenium Iridium Yttrium

slide11

Which of the following elements are generally gases or brittle, dull-looking solids, and poor conductors of heat and electricity?

Copper Phosphorus Platinum Argon

Bromine Selenium Iridium Yttrium

Non-metals are the only elements that have these characteristics

slide12

Whichof the following elements are generally shiny when smooth and clean, solid at room temperature, and good conductors of heat and electricity?

Lithium Selenium Iodine Nickel

Lead Scandium Tungsten Carbon

slide13

Whichof the following elements are generally shiny when smooth and clean, solid at room temperature, and good conductors of heat and electricity?

Lithium Selenium Iodine Nickel

Lead Scandium Tungsten Carbon

Metals are the only elements that have these characteristics

slide14

Which of the following are elements with physical and chemical properties of both metals and nonmetals?

Molybdenum Silver Germanium Gold

Calcium Arsenic Antimony Carbon

slide15

Which of the following are elements with physical and chemical properties of both metals and nonmetals?

Molybdenum Silver Germanium Gold

Calcium Arsenic Antimony Carbon

Metalloids are the only elements that have these characteristics

slide18

Which one of the following elements would tend to form ions with a positive charge?

Phosphorus Calcium Xenon

slide19

Which one of the following elements would tend to form ions with a positive charge?

Phosphorus Calcium Xenon

slide21

Why don’t noble gases form ions?

They have a full octet of electrons and have no need to gain or lose electrons

slide29

What is the name of the chemical family that is in group 2 of the periodic table?

Alkaline Earth Metals

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