13/09/19: Atomic theory test 1 Flashcards
1
Q
Why is the Ar rarely a whole number?
A
as it is an average of the naturally occurring isotopes, rarely a whole number
2
Q
formula of calcium hydrogen carbonate
A
Ca(HCO3)2
3
Q
who determined the amount of charge of the electron
A
milikab
4
Q
How did Rutherford conclude that the nucleus was Dense from his gold foil experiment
A
very few alpha particles bounced straight back along their own path
5
Q
Copper (II) nitrate formula
A
Cu(NO3)2
6
Q
NaClO
A
sodium hypochlorite
7
Q
Mn(OH)3
A
Manganese hydroxide
8
Q
write a balanced equation to show reaction between sodium and oxygen
A
4 Na + O2 –> 2 Na2O
