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Chemistry C2 > Structure And Bonding > Flashcards

Structure And Bonding Flashcards

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0
Q

What does chemical bonding involve?

A

sharing electrons in the highest energy levels of atoms to achieve electronic structure of a noble gas

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1
Q

What are compounds?

A

Substances in which atoms of two or more elements are chemically combined

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2
Q

what do atoms form by transferring electrons?

A

Ions

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3
Q

What are atoms that lose electrons known as?

A

Positively charged ions

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4
Q

What are atoms that gain electrons known as?

A

Negatively charged ions

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5
Q

What group are the noble gases in?

A

Group 0

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6
Q

What structure do ions have?

A

The electronic structure of a noble gas

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7
Q

What happens when the alkali metals react with non metal elements?

A

They form ionic compounds in which the metal ion has a single positive charge

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8
Q

What are the elements in group 7 of the periodic table?

A

Halogens

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9
Q

What do the halogens react with the alkali metals to form?

A

Ionic compounds in which the halide ions have a single negative charge

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10
Q

What is an ionic compound?

A

A giant structure of ions

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11
Q

What are ionic compounds held together by?

A

Strong electrostatic forces of attraction between oppositely charged ions

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12
Q

What is ionic bonding?

A

The electrostatic force of attraction between positively and negatively charged ions

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13
Q

How does an atom become an ion?

A

It has to lose or gain electrons

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14
Q

What do ionic compounds always have?

A

Giant ionic lattices

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15
Q

What is a giant lattice?

A

A huge 3d network of atoms or ions

16
Q

Give an example of a giant lattice?

A

Sodium Chloride which is a SALT

17
Q

What happens when atoms share pairs of electrons?

A

They form covalent bonds

18
Q

What do metals consist of?

A

Giant structures of atoms arranged in a regular pattern

19
Q

What do some covalently bonded substances consist of?

A 
Molecules such as:
H2
Cl2
O2
HCL
H2O
NH3
CH4
20
Q

How many electrons does every outer shell have to have apart from the first cell?

A

8

21
Q

Give an example of a giant covalent structure?

A
  • diamond

- silicon dioxide

22
Q

What is another word for a giant covalent structure?

A

Macromolecules

Chemistry C2 (14 decks)

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