Periodic table and atomic structure - Unit 3
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| What are group 1 elements also known as? | Alkali metals
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| What are group 2 elements also known as? | Alkaline earth metals
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| What is the d-block also known as? | Tranisiton metals
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| What are group 7 also known as? | Halogens
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| What are group 8/0 also known as? | Noble gases
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| Where do metals lie? | To the left of the striarcase
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| Where do non-metals lie? | To the right of the staircase
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| What is the mass number? | Sum of number of protons and neutrons
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| What is atomic number? | The number of electrons
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| What is an isotope? | An atom with the same number of protons and electrons but differant numbers of neutrons
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| What must be used to veiw an emissions spectra? | Spectroscope
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| How can energy be provided to a solid sample? | Flame testing
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| How can energy be provided to a gaseous sample? | Electrical discharge tube at low pressure
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| What causes the release of light giving the emission spectra? | Electrons falling back to their normal quantum shell, having jumped up energy levels
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| What is ionization energy? | Energy required to remove one mole of gaseous electrons from one mole of gaseous atoms
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| Which element gives a lilac flame? | Pottassuim
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| Which elelment gives a Yellow flame? | Soduim
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| Which two elements give a red flame? | Lithium and strontuim
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| Which element gives a brick red flame? | Calcuim
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| Which element gives no flame colour? | Magnesuim
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| Which element gives an apple green flame? | Barium
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| Which element gives a blue/green flame? | Copper
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| Which quantum levels are easier to remove electrons from? | Outer
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| What does a jump in ionization energies indicate? | A change of quantum level
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| What happens to ionization energies as you move across the period? | They increase
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| What happens to ionization energies as you move down the group? | They decrease
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| How are electrons arranged? | In quantum shells
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| What are the 3 first subshells? | s,p,d
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| How many electrons fit into the s sub-shell? | 2
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| How many electrons fit into p sub-shell? | 6
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| How many electrons are found in sub-shell d? | 10
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| In what order are the sub-shells illed? | s, p, d
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| What causes chemical simularities down the groups? | Simular electron arrangements
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| What is electron affinity? | Energy change occuring when one mole of gaseous electrons are added to one mole of gaseous atoms
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| What are the two types of compounds? | Giant and molecular
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| What are the 3 types of chemical bonding? | Metallic, covalent, ionic
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| What type of bonding is found in molecular compounds? | Covalent
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| What type of bond in found in giant compounds? | Metallic, covalent, ionic
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| What size are positive ions in relation to their elements? | Smaller
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| What size are negative ions in relation to their elements? | Larger
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| What keeps the crystalline shape? | Attraction from differant ions, repulsion from same ions
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| What are high melting points of metals caused by? | Metallic bonding
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| What is high thermal conductivity of metals caused by? | Metallic bonding
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| What is high electrical conductivity of metals caused by? | Metallic bonding
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| What is the model for metallic bonding? | Metal ion surronded by electrons
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| Does metallic bonding acount for all metal properties? | No
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