Chemistry A Molecular Approach AP Edition Chapter 8

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Quantum mechanics

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Chemistry

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1

Quantum mechanics

________ explains how electrons arrange in an atom.

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2

Hydrogen

________ acts like a nonmetal and is not included in 1A metals.

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3

Nonmetals

________ have varied physical properties but tend to be poor conductors of heat and electricity and gain electrons in chemical reactions.

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4

aufbau principle

The ________ says that only two electrons with opposing spins are allowed in each orbital.

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5

Mendeleev

________ could predict elements that hadn't been discovered yet with this table.

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6

sodium

The ________ is pumped out of cells while potassium is pumped in.

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7

Attraction

________ decreases as particles get farther apart.

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8

Halogens

What are reactive because they can easily gain one electron to have a noble gas configuration? Answer with a single words or term.

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9

Sublevel energy

The spin determines how many electrons can be in one orbital. ________ splitting determines the order of orbital filling.

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10

quantum mechanics theory

The ________ describes the behavior of elements.

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11

Metallic character

What is important because there are many metals on the periodic table? Answer with a single words or term.

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12

Alkali metals

________ can easily lose an electron to have noble gas configurations.

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13

Noble gases

________ can be used to represent inner electrons.

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14

Penetrations

What is when an electron gets closer to the nucleus? Answer with a single words or term.

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15

Transition elements

________ make up the d orbitals.

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16

Fluorine

What is the most powerful oxidizing agent? Answer with a single words or term.

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17

atomic radius

What is largely determined by the number of valence electrons? Answer with a single words or term.

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18

Helium

________ has 2 valence electrons.

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19

Electron configurations

________ shows the particular orbital that electrons occupy.

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20

Anions

________ are much larger than their normal atoms.

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21

Orbitals

________ fill from left to right.

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22

Valence electrons

What are important for chemical bonding? Answer with a single words or term.

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23

orbital diagram

A(n) ________ symbolizes the electrons as an arrow and the orbital as a box.

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24

Ionization energy lowers

________ going down a column.

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25

Periodic properties

________ are predictable based on the element's position on the table.

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