3rd Nine Weeks BM

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What do the periods on the periodic table tell you?

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Periodic Table of Elements

42 Terms

1

What do the periods on the periodic table tell you?

number of rings the Bohr model has

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2

What is an electron dot diagram/Lewis dot structure based on?

the family the atom is in

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3

What can you predict from an elements location on the periodic table?

non-metal or metal

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4

What does H2O represent?

chemical formula

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5

Give an example of physical change

color, taste, shape

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6

Give an example of chemical change

flammability

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7

The number in the chemical formula tells you what? What is that number called? ex MgBr2

how many elements that atom has, aka subscript

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8

Each family in the periodic table has it’s own characteristic properties based on. . .

the number of valence electrons (outer ring on the Bohr model)

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9

When an atom loses an electron, what does it become?

cation

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10

Polyatomic ions

an ion that contains more than one atom

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11

Atom

smallest possible unit into which matter can be divided, while still maintaining it’s properties

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12

2 subatomic particles found in a nucleus?

protons and neutrons

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13

greatest number of valence electrons an atom can have

8

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14

rows across periodic table are called

periods

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15

chemistry

branch of science that deals with the identification of the substances of which matter is composed

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16

matter

anything that has mass and takes up space

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17

element

substances that can’t be broken down chemically into other substances

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18

Ernest Rutherford

discovered positively charged nucleus during gold foil experiment

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19

density

measure of the amount of matter present in a volume of substance

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20

mass number of an element

protons + neutrons

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21

density of an object

mass divided by volume

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22

what makes an atom neutral

protons are the same number as electrons

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23

Mendeleev arranged the first table

increasing atomic mass

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24

Element location on the periodic table tells you. . .

the properties of the new elements

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25

What has SIMILAR properties on the periodic table?

elements with the SAME number of valence electrons

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26

most reactive metals on the periodic table

Lithium and Sodium

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27

which elements would gain 2 electrons to become stable?

hydrogen, lithium, beryllium

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28

which elements would have 2 valence electrons?

helium

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29

what info in the periodic table indicates the number of protons in an atom?

atomic number

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30

what parts of the atom move around the nucleus

electrons

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31

how many dots around the phosphorus lewis dot structure

5

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32

noble gases

are the elements that don’t normally form compounds because they are stable

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33

electrons

subatomic particles that have negative electric charge

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34

Proton charge

positive

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35

Neutron (neutral) charge

none

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36

Electron charge

negative

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37

Groups/Families 1

Hydrogen

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38

Groups/Families 2

Beryllium

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39

Groups/Families 17

Flourine

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40

Group/Families 18

Helium

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41

elements in which group are least likely to bond with another atom?

noble gases

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42

Water density (H2O)

997 kg/m3 OR 1 gm/ml

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