Chapters 1-2
1.06 L of water is equivalent to how many microliters?
1 060 000 microliters
Rutherford's gold foil experiment lead to the discovery of a dense, positively charged region now referred to as the ____________
nucleus
How many possible values are there for the spin quantum number?
2
The strength of an ionic bond is indicated by what?
lattice energy
What is the correct name for the binary ionic compound BaF2?
barium flouride
A theory differs from a hypothesis in that
it has been subjected to experimental testing.
An atom has 17 protons and 20 neutrons. Which element is the atom and what is its mass number?
chlorine and 37
What is the correct noble gas notation for As?
[Ar]4s23d104p3
Which elements have full outer energy levels in the ground state?
noble gases
Calculate the molar mass of Fe2(SO4)3
399.88 g/mol
0.34 g is equivalent to how many kg? mg?
0.00034 kg
340 mg
A mole of any element has how many atoms?
6.022 x 1023 atoms
What does the angular momentum quantum number indicate?
The shape of the orbital
Group 2 elements are called?
Group 17 nonmetals are called?
alkaline-earth metals
halogens
Which element has the same oxidation numbers in all of its compounds?
+5, -2
Flourine
The accepted density of iron is 7.87 g/cm3. A student records the mass of a 20.00 cm3 block of iron as 153.8 grams. What is the percent error for the density measurement?
-2.29%
The least massive particle of an atom that was discovered through the cathode ray experiments is what?
the electron
What is the frequency of light whole wavelength is 366 mm?
Which rule states that each of the specific orbitals at a particular level have 1 electron before any of them have 2?
Hund's rule
3.82 g of SO2 is equal to how many moles?
0.0596 mol
The density of pure diamond is 3.5 g/cm3. The mass of diamond is 0.50 g. Find the volume
0.142 cm3
What is the mass of 3.56 mol of glucose, C6H12O6?
641 g
What is the frequency of a photon whose energy is 3.4 x 10-19 J?
h=6.626 x 10-34 J*s
5.1 x 1014 Hz
What is the shape for a molecule of NBr3?
trigonal pyramidal
What is the percentage iron in iron (III) chloride?
34.43%