Chapters 7: Periodic Trends

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What is the organization of the periodic table based on?

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1

What is the organization of the periodic table based on?

The periodic table is organized into rows called periods and columns called groups (or families).

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2

How many periods are there in the periodic table?

There are seven periods in total.

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3

What do elements in the same group share?

Elements in the same group share similar chemical properties due to having the same number of valence electrons.

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4

What is the trend for atomic radius across a period and down a group?

The atomic radius decreases across a period from left to right and increases down a group.

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5

What is ionization energy?

Ionization energy is the energy required to remove an electron from an atom in its gaseous state.

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6

What is the trend for ionization energy across a period and down a group?

Ionization energy generally increases across a period and decreases down a group.

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7

What does electronegativity measure?

Electronegativity measures an atom's ability to attract and bond with electrons.

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8

What is the trend for electronegativity across a period and down a group?

Electronegativity generally increases across a period and decreases down a group.

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9

What is the change in energy referred to when an electron is added to a neutral atom?

Electron affinity.

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10

What is the trend for electron affinity across a period?

Electron affinity generally becomes more negative across a period.

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11

What does metallic character refer to?

Metallic character refers to how readily an element can lose an electron.

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12

What is the trend for metallic character across a period and down a group?

Metallic character decreases across a period and increases down a group.

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13

What influences all the trends in the periodic table?

Trends are influenced by the arrangement of groups and periods.

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