Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
40 Cards in this Set
- Front
- Back
|
All atoms wish to have a ..... ..... .....
|
full outer shell.
|
|
|
Ionic bonding involves the ...... of electrons from 1 atom to another.
|
transfer
|
|
|
Non-metals in Groups VI & VII gain ..... electrons.
|
negative.
|
|
|
Metals in Groups I & II lose .... electrons. Overall ..... charge.
|
negative
positively |
|
|
An ion is a ...... atom.
|
charged
|
|
|
Bonding between non-metals are called?
|
Covalent bonding
|
|
|
What groups form ionic compounds?
|
Groups I, II, VI and VII.
|
|
|
A covalent bond is a ....... pair of .......
|
shared
electrons. |
|
|
What are anions?
|
Negative ions.
|
|
|
When ionic compounds form they produce .... ....
|
giant lattices.
|
|
|
Charged ions within the giant lattice are ..... .....
|
very strong.
|
|
|
The number of .....surrounding each chloride ion is called its....
|
ions
coordination number. |
|
|
The .... the charges on the ions, the ..... the attraction.
|
bigger
stronger |
|
|
Ionic compounds have .... ..... ..... points.
|
very high melting
|
|
|
In many cases ionic compounds are ..... in water.
|
soluble
|
|
|
Water is a ..... .....
|
polar molecule.
|
|
|
Which group do not generally form bonds?
|
Group O, noble gases which are very stable. Except Xenon.
|
|
|
Most molecular substances are .... or .... at room temperature.
|
gases
liquids |
|
|
Molecular substances .... .... ....
|
don't conduct electricity
(because there are no ions). |
|
|
The melting and boiling points of covalent bonds are?
|
Very low.
|
|
|
Giant covalent structures contain.....
|
no charged ions.
|
|
|
Giant covalent structures are usually ..... in water.
|
insoluble
|
|
|
Name 2 examples of giant covalent structures.
|
Diamond
graphite (made only from carbon atoms). |
|
|
Elements that most readily form ions are those in Groups
|
I, II, VI and VII.
|
|
|
Groups I & II are ..... and they .... electrons to form ..... or .....
|
metals
lose +ve ions cations. |
|
|
Groups VI & VII are ....-.... They ..... electrons to form ..... or .....
|
non-metals
gain -ve ions anions. |
|
|
IONIC SUBSTANCES - CATIONS
|
Group I Group II
Li+ Be2+ Na+ Mg2+ K+ Ca2+ |
|
|
IONIC SUBSTANCES - ANIONS
|
Group VI Group VII
O2- F- Ci- |
|
|
Only elements at ...... sides of the ...... table will form ...... bonds.
|
opposite
periodic ionic |
|
|
An exmple of a small covalent molecule.
|
Hydrocarbons.
|
|
|
What is a hydrocarbon?
|
Molecules containing carbon and hydrogen atoms.
|
|
|
A molecules get larger their ...... increases.
|
boiling point
|
|
|
What does EPRT stand for?
|
Electron Pair Repulsion Theory. Pairs of electrons repel each other.
|
|
|
Explain the term ionic bond.
|
Attraction between opposite ions formed by electron transfer.
|
|
|
Why do ionic substances conduct electricity when molten?
|
The contain mobile ions.
|
|
|
Why are metals malleable?
|
When metal lattice deforms, electrons flow into new 'spaces' to maintain bonding.
|
|
|
What kind of inter-molecular forces are present in oxygen?
|
van der Waal's.
|
|
|
Which bond exists between + and - regions of polar molecules?
|
Permanent dipole-dipole attractions.
|
|
|
Which bond exist between the lone pair of a N, O or F atom?
|
Hydrogen bonds.
|
|
|
Which is the strongest intermolcular force?
|
Hydrogen bonds - H-bonds.
|
