WorksheetsChem 1B Quiz Buster 2
Total questions: 15
Worksheet time: 31mins
Which of the following is most TRUE about transition metals?
They don't look very metallic
They have high boiling points but low melting points
They can transition to different isotopes easily
They can have multiple oxidation states
What is the oxidation state of Fe in Na2[Fe(CN)5NH3]?
2
3
5
Fe doesn't oxidise
What is the electron configuration for copper?
[Ar] 4s1 3d10
[Ar] 4s2 3d7
[Ar] 4s1 4d9
[Ar] 4s2 3d9
What wavelength of light would [Fe(CO)6] most likely absorb?
Short wavelengths because its high spin
Long wavelengths because its high spin
Short wavelengths because its low spin
Long wavelengths because its high spin
Which of the following is a bidentate ligand?
EDTA
Ethylenediamine (en)
Cyanide
Ammonia
Which of the following is in a trans conformation?
none of these are in the trans conformation
An atom above the belt of stability will most likely undergo
Alpha decay
Beta decay
Electron capture
Positron emission
Which is TRUE about nuclear fission?
The products of the reaction are larger elements
Fission forms new subatomic particles
It is an endergonic reaction
The products of the reaction are smaller
An octahedral metal complex is formed using only bidentate ligands, what is the coordination number?
6
3
8
There is not enough information to answer the question
You find a skeleton of unknown age, if the sample has 2x10-14 and living creatures have 1.33x10-12, approximately how old is the skeleton?
34 600 years old
4 200 years old
66 years old
2.6 x1016 years old
Iodine-131 has a half-life of 8 days. If there are 200 grams of the sample how much of Iodine-131 will remain after 32 days?
12.5 g
0.78 g
4.65 g
100 g
Complete the following nuclear equation:
What statement best describes this element?
Unstable because it does not have a magic number of neutrons
Unstable because it has an odd number of protons and neutrons
Stable because it has a magic number of neutrons
Stable because it has an even number of neutrons
If an unstable isotope is located at the end of the band of stability it will undergo:
Alpha decay
Beta decay
Positron emission
Electron capture
Between Se and Br which is more stable?
Se
Br
Neither are stable
Both are stable
