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HistoryTrends Metals, nonmetals, metalloids Groups Periods Other 10 20 30 40 50

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Question 1 - 10 The modern periodic table lists elements in order of increasing atomic________.

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Answer 1 – 10 Number

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Question 1 - 20 Describe Mendeleev’s periodic table.

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Answer 1 – 20 He arranged elements in order of increasing atomic mass.

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Question 1 - 30 Why is Mendeleev the “Father of the Modern Periodic Table” and not Meyer or both?

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Answer 1 – 30 Mendeleev correctly predicted physical properties of three unknown elements.

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Question 1 - 40 How did Moseley update the Periodic Table?

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Answer 1 – 40 After calculating the atomic number of elements, he rearranged the PT by increasing atomic number.

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Question 1 - 50 Assess the contributions of Mendeleev and Moseley to our modern understanding of the relationship between atomic structure and atomic behavior.

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Answer 1 – 50 Mendeleev’s PT was able to show that groups/families of elements have similar properties depending on the size of the nucleus. (able to predict properties of atomic behavior based on guessed atomic mass) Moseley expanded upon Mendeleev’s ideas with atomic number (number of protons) defining an atom and its properties.

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Question 2 - 10 What is the trend for metallic reactivity across a period? (for example from sodium, to magnesium, then aluminum?)

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Answer 2 – 10 Chemical reactivity of metals generally decreases across a period.

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Question 2 - 20 What is ionization energy?

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Answer 2 – 20 Amount of energy needed to remove an electron to form a cation.

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Question 2 - 30 Describe the trend across a period and down a group for electronegativity.

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Answer 2 – 30 The trend across a period for electronegativity increases. It decreases as it goes down a group.

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Question 2 - 40 What is the trend for atomic radius on the periodic table?

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Answer 2 – 40 It decreases across a period and increases down a group.

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Question 2 - 50

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Answer 2 – 50

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Question 3 - 10 Where are the metals located on the periodic table?

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Answer 3 – 10 To the left and cover most of the periodic table.

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Question 3 - 20 What type of element is Tungsten?

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Answer 3 – 20 Transition metal

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Question 3 - 30

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Answer 3 – 30

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Question 3 - 40

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Answer 3 – 40

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Question 3 - 50

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Answer 3 – 50

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Question 4 - 10

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Answer 4 – 10

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Question 4 - 20

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Answer 4 – 20

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Question 4 - 30

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Answer 4 – 30

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Question 4 - 40

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Answer 4 – 40

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Question 4 - 50

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Answer 4 – 50

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Question 5 - 10

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Answer 5 – 10

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Question 5 - 20

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Answer 5 – 20

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Question 5 - 30

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Answer 5 – 30

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Question 5 - 40

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Answer 5 – 40

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Question 5 - 50

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Answer 5 – 50

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History of the Periodic Table Dimitri Mendeleev published a periodic table that arranged elements by increasing atomic mass Dimitri Mendeleev published.

History of the Periodic Table Dimitri Mendeleev published a periodic table that arranged elements by increasing atomic mass Dimitri Mendeleev published.

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