Data
How many sig figs in 501,340?
Table 3
5
How many kilograms in 10.2 g?
0.0102 kg
Why do isotopes go through radioactive decay?
Table 2
Isotopes are looking for stability.
What is the label to group 17 elements?
Halogens
What is the number of sig figs in:
0.005034600 mg?
Table 4
7
What are the SI units for:
Length, Time, Mass, Temperature, Amount of Substance
Table 4
Meter, Second, Kilogram, Kelvin, Mole
What series is the one with phosphor properties? What does phosphor refer to?
Table 2
Lanthanides, ability to emit light
Is Xe a cation or anion? Why?
Table 2
Neither, Xe is a noble gas and has a full octet.
Describe the difference between heterogenous and homogenous mixtures.
Table 2
Heterogenous: Can see various components, easily separated.
Homogenous: Consistent throughout, not easily separated.
What is the difference between ductile and malleable?
Table 1
Ductile- ability to be drawn into wire
Malleable- ability to be hammered into thin sheets
What happens during a nuclear reaction?
Table 1
Nuclear reactions change one element into another.
What is the unabbreviated configuration for sulfur?
Table 1
1s22s22p63s23p4
What is the difference between accuracy and precision? (A drawing is okay)
Table 1
Accuracy is how close to accepted. Precision is how close to each other.
If the accepted value is 13.3g, and you measured 17.1g, what is the error AND percent error?
Table 2
Error: 3.8
Percent Error: 28.6%
What is the wavelength of a microwave that has a frequency of 4.23 x108 s-1 ?
Table 4
0.71 m/s
What is the group number, number of valence electrons, and electron dot diagram for Nitrogen.
Table 4
Answer will vary
What is the answer to the following:
4.20 x 104 + 1.049 x 102 = ?
Table 3
42100 or 4.21 x 104
Which laws did John Dalton include in the atomic theory? (hint: three)
Table 1
- Law of conservation of mass
- Law of definite proportion
- Law of multiple proportion
What is the alpha decay of: 181 73 Ta--->?
Table 4
42He + 17771 Ta
What are the three rules that dictate orbital filling?
Table 4
Aufbau rule
Pauli exclusion
Hunds
Why are group 1 elements so violent to react?
They want to give up their only valence electron!