Math and Measurement
Isotopes
The Atom
Wave Properties
Electron Configuration
100
65,000 in scientific notation is
6.5x104
100
Carbon-12 and Carbon-14 are isotopes. The difference between these two atoms is
The number of neutrons
OR
The mass
100
How many neutrons does Carbon-14 have?
8
100
Waves with low frequencies will have low
energy
100
What is the full configuration for Phosphorus?
1s22s22p63s23p3
200
1.5x10-5 in standard notation is
.000015
200
Give the hyphen notation of an isotope with 15 neutrons and an atomic number of 14?
Silicon-29
200
What is the mass of a calcium atom with 21 neutrons?
41
200
Waves with long wavelength will have low
energy and frequency
200
What is the shorthand configuration for Silver (#47)
[Kr]5s24d9
300
You bought a bag of jelly beans and the label said it weighed 10 ounces. When you actually weighed the jelly beans it was 10.3 ounces. What was the percent error?
2.9%
300
There are three isotopes of hydrogen (hydrogen-1, hydrogen-2 and hydrogen-3); based on its average mass, which one is most abundant?
Hydrogen-1
300
What did Rutherford discover about the atom from his gold foil experiment?
The atom is mostly empty space
AND
The nucleus is small, dense and positively charged
300
What type of radiation has the shortest wavelength?
gamma
300
Correct or Incorrect?
The configuration for Lutetium (#71) is [Xe]6s25d1
Incorrect
400
Convert 400 meters into kilometers
.4 km
400
Which of the following atoms are isotopes?
Element #protons # electrons #neutrons
A 19 19 20
B 20 19 19
C 20 21 20
D 19 20 20
B and C are isotopes
400
An element has 2 isotopes. One isotope has a mass of 32 and occurs 65% of the time. The other has a mass of 30 and occurs 35% of the time. What is the average atomic mass of this element?
31.3 amu
400
If energy decreases, wavelength will
increase
400
Give the configuration for N-2
(Honors Only)
1s22s22p5
500
A student is given a rock that is known to have a mass of 436.8 grams. She measures the mass of the rock three different times with the following results: 460.9 g, 461.4g, 459.0 g. What can be said about her precision and accuracy?
She is precise but not accurate
500
What element is the following notation showing?
114X48
Cadmium
500
Which subatomic particle is the same as the atomic number?
The proton
500
Which type of radiation has the highest frequency?
gamma
500
How many electrons can be held in each orbital?
s=2
p=6
d=10
f=14