Flashcards
Bond structure
Flashcards do conjunto (22)
- 1What is an orbital?The probability of finding an electron in a given volume of space.
(sub-shells) - 2What are the four different types of orbitals?S,P,D,F
- 3How many orbitals are in each of the shells? (Table)2 n=1 1s
8 n=2 2s,2p
18 n=3 3s,3p,3d
32 n=4 4s,4p,4d,4f - 4Describe the properties of the S orbital>The s orbital is spherical
>1s = 2 electrons - 5Describe the properties of the P orbitals>dumb-bell shaped
>3 P orbitals (z,x,y- differing in orientation)
>2x3=6, 6 electrons between them - 6Describe the properties of the D orbital>5 D orbitals
>2X5=10, 10 electrons between them - 7Describe the properties of the F orbital> seven f-orbitals
>7x2=14 electrons, 14 electrons between them. - 8What is spin?A property that electrons have.
Two electrons in the same orbital have opposite spins. The electrons are usually represented by arrows pointing up or down to distinguish the different directions of spin. - 9What is the pauli exclusion principle?An orbital can hold a maximum of two electrons. To occupy the same orbital, two electrons must spin in opposite directions.
- 10What is the Aufbau principle?Orbitals of lower energy are filled first.
- 11What is Hund's rule?Orbitals of the same energy fill singly before pairing up, this is because electrons repel each other.
- 12What is the order in which subshells are filled with electrons?
- 13Shapes 2 electronsLinear
180 - 14Three electrons pairsTriganol Planar
120 - 15Four electron pairsTetrahedal
109.5 - 16Four electron pairs (3 bonding one lone)triganol pyramidal
107 - 17Four electrons (3 bonding, 1 lone pair)V-shaped/bent/non-linear
104 - 18Five electron pairsTrigonal biypramidal
120/90 - 19Five electron pairs (4 bonding pairs and 1 lone pair)sawhorse
104/177 - 20Five electron pairs (4 bonding 2 lone pair)T-shaped
87.5 - 21Six electron pairsOctahedral
90 - 22six electron pairs (4 bonding, two lone)Square Planar
Informações
- Descrição
- AS-Level Chemistry FlashCards sobre Bond structure, criado por Lauren Burgess em 23-11-2015.
- Criado por
- Lauren Burgess
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