Periodic Table Flashcards

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1
Q

Period

A

Rows
———-
———
————

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2
Q

Family or Group

A

Collum
| |
| |
| |

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3
Q

Properties of metals (5) and where they are on table

A
Conduct heat and electricity
Ductile and malleable 
Lustrous 
React to acids 
Solid at room temp 

Left of step

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4
Q

Properties of Non-Metals (5) and where they are on the table

A
Poor conductivity
Not malleable or ductile
No lusted
No reaction to acids
Many are gaz at room temp

Right of step

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5
Q

Hydrogen (metal or non metal)

A

Non metal

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6
Q

Semi-Metal / Metaloids

A

Some characteristics of metal

Border the step

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7
Q

Within a period the elements have the same number of ____

A

Shells

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8
Q

Within a family the elements have the same number of ___

A

Valance electrons

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9
Q

Alkali Metals. Group number and 5 characteristics

A
Group 1
React to water
Soft
Not hydrogen
Stored in oil
Not found in elemental state
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10
Q

Alkaline earth metals group number and 4 characteristics

A
Group 2
Malleable and reactive 
Burn easy
Not found in elemental state 
Can be exposed to air
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11
Q

Halogens group number and 4 characteristics

A

Non metal
React easy
Form compounds
Disinfectant

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12
Q

Noble gases group number and 4 characteristics

A
Group 8
Stable
Includes helium
Can be found in elemental state
Full valance shell
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13
Q

Atomic radius change in period and family

A

Period: left to right gets smaller (number of protons and electrons increase so there is a bigger of force of attraction towards the inside

In a family: gets bigger (more shells)

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14
Q

Properties of elements that have trends in the periodic table (5)

A
Melting point 
Boiling point 
Density
First ionization energy 
Electromagnetivity
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15
Q

Atomic number

A

Represents number of protons (equal to electrons)

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16
Q

Relative atomic mass

A

Reletive atomic mass is the mass of an atom measured by comparison to the reference element carbon 12

Unity is AMU

17
Q

1 AMU= ?g

A

1.66 X 10^-24

18
Q

Mass number

A

Rounded relative atomic mass

19
Q

Isotopes

A

Different form of the same element with a different number of neutrons

Atomic number stays the same but mass number changes

20
Q

How many electrons in every shell

A

1) max 2
2) max 8
3) max 18

21
Q

Lewis notation

A

Element in middle

Number of valance electrons surrounding element in dot form

22
Q

Rutherford bohr

A

Make a nucleus and put the number of protons with a + sign in the middle

Make the number of shells around nucleus

Place electrons

23
Q

Somplified atomic maodel

A

Draw nucleus, inside put the number of protons and neutrons.
Arcs represent the number of shells. Number of electrons on the shells

24
Q

Ball and stick atomic model

A

Atom is a ball and bonds are drawn as longs. Size of ball corresponds to number of shells

25
Q

What is a mole

A

Quantity equal to the number of atoms in 12 grams of carbon 12. Symbol is mol

26
Q

Avagadros number

A

Number of entities in one mole

6.02 X 10^23

27
Q

Molar mass

A

Mass of one mole in the substance

H2O= 2 + 16 = 18

28
Q

What is a molecule

A

Two or more chemically bonded atoms

29
Q

Why do atoms bond

A

To get the same electron configuration as noble gazes

30
Q

Octet Rule

Duet Rule

A

Octet: try to get 8 valance electrons

Duet: Lithium Berrylium and Boron tend to acquire a configuration like helium. (2 valance electrons)

31
Q

If fluorine gains an electron it becomes

If fluorine loses and electron it becomes

(Notation form)

A

F1-

F1+