Day 1 Flashcards

(19 cards)

1
Q

What is periodic law

A

Elements and their property’s are functions of there atomic number

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2
Q

what is a period

A

Horizontal rows on the periodic table. The period #is = to the #pf energy level The period # is on the left side
Left side metals
Steps metalloids
Right side gas

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3
Q

What is a group

A

The vertical columns on the periodic table
Aka family’s
Elements in the same group have similar characteristics because they have the same # of valence electrons

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4
Q

Metals

A

The most active located in group 1-2
Metallic property’s increase top to bottom
The most active metal is francium

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5
Q

What are the property’s of metals

A
Solids at room temperature
 Only exception is mercury
Malleable= can be pounded in to thin sheets and shaped
Metals are ductile. Drawn into a wire
Luster= ability to reflect light
Good conductors of heat and electricity 
Low electronegativity
Low ionization energy
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6
Q

What is electronegativity

A

How badly an element wants and electron

Fr has the lowest
Fr =.7
F has the highest
F=4.0

In a group decreases
In a period increases

Table S

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7
Q

What is ionization energy

A

Energy required to remove valence electrons

Fr- 393 kilojoules per mol
F-1681 kilojoules per mol

In a group decreases
In a period increases

Table S

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8
Q

Melps

A

Metals electrons lose positive smaller

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9
Q

Transition elements

A

Group 3-12
Wonky configs
Hard solids with high melting points
Multiple oxidation states giving them colored solutions of varying colors

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10
Q

Metaloids

A
Properties of both metals and non metals
Main
Si
Ge
As
Sb
Te
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11
Q

Non metals

A
Mostly gasses or solids at room temp
Exception bromine-liquid
Brittle
No luster
High ionization energy
High electronegativity 
Poor conductors
Tend to gain electrons
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12
Q

Noble gasses

A

Don’t react because they have filled valence shells

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13
Q

Allotrope

A

Nonmetal that can exist two or more forms

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14
Q

Who made the periodic table

A

Mendeleev

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15
Q

What is malubility

A

The ability to be pounded in to thin sheets

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16
Q

What is ductility

A

Made in to a wire

17
Q

List the metaloid

A
B
Si
Ge
As
Sb
Te
18
Q

What do we call noble gases

19
Q

What are the rest of the nonmetal gases called