Using a Periodic Table, number of protons in an atom of magnesium.
What is 12?
100
True or false - to calculate average atomic mass you add the mass of all the isotopes and divide by the number of isotopes.
What is false?
100
Element with the outermost energy level of 5p2.
What is tin?
100
In the visible spectrum, wave with highest frequency.
What is violet?
200
Discovered the atom has a small, dense, positively charged nucleus.
Who is Rutherford?
200
Using a Periodic Table, number of neutrons in bromine-80.
What is 45?
200
Using a calculator, calculate the average atomic mass for Cl-35 75% abundant and Cl-37 25% abundant. Provide the answer to two decimal places with units.
What is 35.45 amu?
200
Block of the periodic table where calcium located.
What is s?
200
In the electromagnetic spectrum, lower frequency than visible light.
What is infrared?
300
Developed the “plum pudding” model.
Who is Thomson?
300
Using a Periodic Table, number of protons, neutrons, and electrons in fluorine.
What are 9 protons, 10 neutrons, and 9 electrons?
300
Using a calculator, calculate the average atomic mass for Br-79 50.69% abundant and Br-81 49.31% abundant . Provide the answer to two decimal places with units.
What is 79.91 amu?
300
Number of electrons d-sublevel can hold.
What is 10?
300
In the electromagnetic spectrum, shorter wavelength than x-rays.
What is gamma rays?
400
Model worked only for the hydrogen atom.
Who is Bohr?
400
Using a Periodic Table, number of neutrons in lead–207.
What is 125?
400
Using a calculator, calculate the average atomic mass for Cu-63 69.2% abundant and Cu-65 30.8% abundant. Provide the answer to two decimal places with units.
What is 63.62 amu
400
Number of electrons orbitals can hold.
What is 2?
400
Relationship between wavelength and frequency.
What is inverse?
500
Developed mathematical equation for current model of atom.
Who is Schrodinger?
500
Number of unpaired electrons for oxygen.
What is 2?
500
Using a calculator, calculate the average atomic mass for N-14 99.63% abundant and N-15 0.37% abundant. Provide the answer to two decimal places with units.
What is 14.01 amu?
500
Maximum number of electrons in the n = 3 energy level.
What is 18?
500
Using a calculator, calculate wavelength with a frequency of 1.50 x 10^13 Hz (provide answer to three signifucant figures and in scientific notation).