Per Flashcards by Shannon Mcinerney

Gold

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Groups

Down

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Periods

Across

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Atomic number has the same number as ?

Protons

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Atomic mass is protons and

Neutrons

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Isotopes

Versions of elements that has the same number protons and different amount of neutrons

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Electrons

When the element has a charge

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An element with - charge has

An extra electron than protons

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+ charge element has

Lost and electron has more protons

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Scandium

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Vanadium

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Chromium

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Manganese

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Metalliods

Semi metals, has both metallic and non metallic properties

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Metalloids

Ge, Si, At, Po, Te, As, Sb

Gary shelia and pat teach all science

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Ionic bonds

Both anions and cations

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Cation

Always first and positive

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Monatomic ions

Contain one atom

Mg ect

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Polyatomic ions

Contains more then one atom eg SO4

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Gallium

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Germanium

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Tungsten, wolframite

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Tin

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Ionic

Metal and non metal

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Binary

Consist of two different elements

Not binary

More than two elements

Arsenic

Selenium

Bromine

Krypton

Lead

Mercury

Charge on transition metals need

Numbers (III)

Group 2 loses

2 electrons

Rubidium

Strontium

Yttrium

Zirconium

Cobalt

Gallium

Niobium

Molybdenum

Technetium

Ruthenium

Rhodium

Palladium

Cadmium

Indium

Antimony

Uranium

Oxyanions

-polyatomic

Oxyanions most popular with 4 oxygens

``` SO4 Po4 CrO4 SeO4 AsO4 ```

``` Prefixes for oxyanions +1 oxygen Most common -1 oxygen -2 oxygen ```

Per . . . . Ate . . . . Ate . . . . . . ite Hypo . . . . . . . Ite

Ionic compounds end in

IDE

Molecular / covalent

Not ionic

Molecular compound use what naming system

Mammals die trying to protect | Horrid Henry only nos destruction

Properties of ionic compounds

``` High boiling point High melting point Solid at room Conduct electric Soluble In water ```

Properties of molecular

``` Low boiling point Low melting point Gas or liquid at room temperature Do not conduct electric Soluble in organic solvent ```

Transition metals form what

Coloured compounds

Prefix’s for water H2O

Hydrate

How man quantum numbers are need to describe and electron

Principal symbol is giving what symbol

The energy level depends of n what does it do

If n ^ so does the energy level | N^=E^

Can n have both negative and positive values

No only positive

As the value of n increases the orbital what

Increases

As n increases the electron is like to be found where

Further away from the nucleus

Angular momentum quantum numbers

Symbol l Has to be 1 lower then n L=n-1 Is n is 3, l =0,1,2

Magnetic quantum number

Symbol ml Can have numbers between +l and -l If l=3, ml=-3 to 3 Can be looked at as orbitals

Spin quantum numbers

Symbol ms Can only have values Of 1/2 or -1/2

What are the quantum numbers

Principal n Angular l Magnetic ml Spin Ms

Copper

Silver

Boron

Beryllium

Barium

Molybdenum