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Chemical Bonds
Ionic Bonds
Covalent bonds
Other Ch. Questions
Miscellaneous
100
What are given, taken, or shared in Chemical bonds.
electrons
100
What is a ion?
an atom that has gained or lost electrons
100
What happens to electrons in covalent bonds
they are shared
100
Why can metals be hammered in to thin sheets and pulled in the thin wires
What is sea of electrons or lot of electrons
100
The first hand-held mobile phone was demonstrated by Dr Martin Cooper of Motorola in ___________ using a handset weighing around 1 kg (~2.2 lbs)
What is 1973
200
What do you call the electrons that are involved in chemical bonding
Valence electrons
200
What happens to the electrons in ionic bonds?
they are transferred
200
how can a dot diagram help you determine if a compound is covalent or not?
all atoms have a full set of outside electrons
200
What do oxidation numbers tell you?
how many electrons a atoms gained or lost
200
The world's largest individual mobile operator by subscribers is
What is China Mobile
300
What groups of elements generally does not form chemical bonds
noble gases
300
What do ionic compounds are arranged in a regular repeating pattern?
crystal lattice
300
A combination of atoms formed by covalent bonds
What is molecule
300
has a oxidation number of -2 in period 5
What is Te
300
when could you first buy a iphone
What is 29 June 2007:
400
How many different types of chemical bonds are there and what are their names?
3, ionic, covalent , metallic
400
What are positive ions attracted to
negative ions
400
What is an example of a chemical formula
What is NaCl, NaOH...
400
in a chemical formula which ion is always list first positive or negative
What is positive
400
approximately how many of the of the world’s 4+ billion mobiles phones are now Smart Phones
What is over 1 billion
500
in a chemical bond the first element always has what kind of charge?
positive
500
What is the process of removing electrons and forming ions called
ionization
500
how many atoms of each element are in this: Ba3(PO4)2
What is Ba - 2 P - 2 O - 8
500
how is a negative ion formed?
What is gaining of electrons
500
when was the first text message sent
What is december 1992