Question
In: Chemistry
Gallium (Ga) consists of two naturally occurring isotopes with masses of 68.926 and 70.925 amu. (a)...
Gallium (Ga) consists of two naturally occurring isotopes with masses of 68.926 and 70.925 amu. (a) How many protons and neutrons are in the nucleus of each isotope? Write the complete atomic symbol for each, showing the atomic number and mass number. (b) The average atomic mass of Ga is 69.72 amu. Calculate the abundance of each isotope.
Solutions
queen_honey_blossom answered 9 months agoRelated Solutions
A hypothetical element consists of two isotopes of masses 70.95 amu and 72.95 amu with abundances...
A hypothetical element consists of two isotopes of masses 70.95
amu and 72.95 amu with abundances of 30.9% and 69.1%, respectively.
What is the average atomic mass of this element?
Gallium has two isotopes, 69Ga and 71Ga; 60.11 % of gallium is 69Ga and 39.89 %...
Gallium has two isotopes, 69Ga and 71Ga; 60.11 % of gallium is
69Ga and 39.89 % is 71Ga. The atomic mass of 69Ga is 68.926 amu and
the atomic mass of 71Ga is 70.925 amu . What is the atomic weight
of gallium?
Boron has two naturally occurring isotopes, 10B and 11B. The ratio of the numeric abundances may...
Boron has two naturally occurring isotopes, 10B and
11B. The ratio of the numeric abundances may vary for
samples derived from diverse natural sources.
A
4.02668
E
4.02709
B
4.02553
F
4.02747
C
4.02404
G
4.02480
D
4.02417
H
4.02598
Sample E was analyzed five times giving
4.02709 and s = 0.00007.
The 99% confidence interval for sample E is:
4.02709± ???
5. calculate the atomic mass of element "X" if it has 2 naturally occurring isotopes with...
5. calculate the atomic mass of element "X" if it has
2 naturally occurring isotopes with the following masse and natural
abundances:
X-45: 44.8776 Amu 32.88%
X-47: 46.9443 Amu 67.22%
10. silver has an atomic mass of 107.868 Amu. The
Ag-109 isotope (108.905 amu) is 48.16%. what is the amu of the
other isotope?
39. calculate the mass percent composition of sulfur
in Al2(SO4)3.
41. determine the molecular formula for a compound
that is 70.79% carbon, 8.91% hydrogen, 4.59% nitrogen,...
1-which term refers to the average mass of an element's naturally occurring isotopes? 2-what is the...
1-which term refers to the average mass of an element's
naturally occurring isotopes?
2-what is the orbital notation of
manganese?
3-covalent bonds are a result of strong electrostatic
attractions between cations and anions? T or F
Osmium (76Os) has seven naturally occurring isotopes, six of which are stable. Osmium 193 is a...
Osmium (76Os) has seven naturally occurring isotopes, six of
which are stable. Osmium 193 is a beta-emitter. A sample of 193Os
with mass of 58.36 μg emits 13.52×108 β
particles in a time interval of 32 min. What is the half-life
(in years) of this nuclide?
Only two isotopes of copper occur naturally, 63Cu (atomic mass = 62.9296 amu; abundance 69.17%) and 63Cu (atomic mass = 64.9278 amu; abundance 30.83%). Calculate the atomic weight (average atomic mass) of copper.
Only two isotopes of copper occur naturally, 63Cu (atomic mass = 62.9296 amu; abundance 69.17%) and 63Cu (atomic mass = 64.9278 amu; abundance 30.83%). Calculate the atomic weight (average atomic mass) of copper.
Boron, atomic number 5, occurs naturally as two isotopes (10B and 11B) with natural abundances of...
Boron, atomic number 5, occurs naturally as two isotopes (10B
and 11B) with natural abundances of 19.9% and 80.1% respectively.
In what ways do the two isotopes differ? Do the electronic
configurations differ? Draw the orbital diagram for 11B. Which
electrons are the valence? Give three ways the 1s and 2s orbitals
differ for this element. Elemental boron reacts withF2 gas to form
BF3(g). Write balance equation for this reaction. If the delta Hf
for BF3 is -1135.6 kJ/mol, find...
Osmium (Os) is the densest naturally occurring element.
Osmium (Os) is the densest naturally occurring element. a. What is the density of this element (in g/cm) if we know a single atom of osmium occupies a volume of 13.981 A3? b. What is the radius (in inches) of a sphere of osmium containing 2.831 mol of osmium atoms?
The atomic masses of He and Ne are 4 and 20 amu respectively.
The atomic masses of He and Ne are 4 and 20 amu respectively. The value of the de Broglie wavelength of He gas at -73°C is ‘M’ times that of the de Broglie wavelength of Ne at 727°C ‘M’ is.
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