periodic table
5.0(2)
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27 Terms
1
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the number of e- that can occupy the sublevels being filled in that period
What determines the length of each period?
2
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2
1s
1s
What are the # of elements and sublevels for period 1?
3
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8
2s 2p
2s 2p
What are the # of elements and sublevels for period 2?
4
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8
3s 3p
3s 3p
What are the # of elements and sublevels for period 3?
5
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18
4s 3d 4p
4s 3d 4p
What are the # of elements and sublevels for period 4?
6
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18
5s 4d 5p
5s 4d 5p
What are the # of elements and sublevels for period 5?
7
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32
6s 4f 5d 6p
6s 4f 5d 6p
What are the # of elements and sublevels for period 6?
8
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32
7s 5f 6d 7p
7s 5f 6d 7p
What are the # of elements and sublevels for period 7?
9
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groups 1 & 2
what groups are the s-block elements?
10
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alkali metals
silvery appearance
soft enough to cut with knife
very reactive, must be stored in kerosene bc they will react with the water in the air
not found in nature as free elements, only in compounds
group 1
soft enough to cut with knife
very reactive, must be stored in kerosene bc they will react with the water in the air
not found in nature as free elements, only in compounds
group 1
11
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alkaline earth-metals
harder, denser, & stronger than alkali metals
higher boiling point
less reactive but also not found in nature as a free element
group 2
higher boiling point
less reactive but also not found in nature as a free element
group 2
12
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H & He
unique, does not share the same properties of group 1
13
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groups 3-12
what groups are the d-block elements?
14
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transition metals
good conductors, high luster
typically less reactive than alkali and alkaline-earth metals
some so nonreactive they do not easily form compounds & exist as free elements
groups 3-12
typically less reactive than alkali and alkaline-earth metals
some so nonreactive they do not easily form compounds & exist as free elements
groups 3-12
15
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gold, palladium, platinum
What are the least reactive transition metals?
16
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groups 13-18
what groups are the p-block elements?
17
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main group elements
made up by the s-block and p-block elements
properties vary greatly
properties vary greatly
18
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nonmetals
What kind of metals does the right side of the p-block have?
19
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metals
What kind of metals does the left side and bottom of the p-block have?
20
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metalloids
boron, silicon, germanium, arsenic, antimony, tellurium
boron, silicon, germanium, arsenic, antimony, tellurium
What kind of 6 metals in the middle of the p-block called? What are they?
21
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halogens
What is group 17 called?
22
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halogens
most reactive metals
react very vigorously with most metals to form salts
react very vigorously with most metals to form salts
23
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metalloids
semiconducting elements
located in the p-block between metals and nonmetals
brittle solids w/ properties of both metals and nonmetals
located in the p-block between metals and nonmetals
brittle solids w/ properties of both metals and nonmetals
24
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metals of the p-block
harder and denser than the s-block metals, but softer than the d-block metals
25
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lanthanides and actinides
What does the f-block consist of?
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lanthanides
shiny and similar to group 2 reactivity
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actinides
radioactive and only 1st four found naturally on earth, the rest made in the lab