Subatomic Particles
Atomic Basics
Isotopes
Let there be light!
Mixed Review
100
What charge does a neutron have?
neutral
100
What is the name of the element with 26 protons?
iron (Fe)
100
Identify the atomic number and the mass number in the isotope below.
atomic # = 29
mass # = 63
100
What are the red arrows measuring?
wavelength
100
How many electrons are in a neutral atom of barium?
56
200
Which subatomic particle has a charge of +1?
proton
200
What does atomic number tell you about an atom?
The # of protons in the atom.
200
Identify the atomic number and the mass number in the isotope below.
silver-107
atomic # = 47
mass # = 60
200
Which subatomic particle (proton, electron, neutron) is responsible for producing electromagnetic waves?
The movement of electrons is responsible for producing electromagnetic waves.
200
An isotope of calcium has a mass number of 41. How many neutrons does this isotope have?
21
300
What charge does an electron have?
-
300
How many electrons can the first energy level of an atom hold?
2 electrons; 8 for all other energy levels
300
What is the same about isotopes of the same element? What is different about isotopes of the same element?
The # of protons stays the same. The # of neutrons changes.
300
The energy of a wave of orange light and a wave of blue light are measured. Which wave has the lower energy and why?
Orange light has a lower energy because it has a longer wavelength.
300
What form of light are human eyes able to detect?
visible light
400
Where are electrons, neutrons, and protons located within the atom?
electrons = energy levels outside of the nucleus
protons & neutrons = nucleus
400
How many protons does an atom with an atomic weight of 118.710 amu have?
50 protons
400
Write the following in isotope notation:
protons = 32
neutrons = 40
electrons = 32
germanium-72
72/32 Ge
400
What is the difference between absorption and emission of energy?
absorption = energy is absorbed; electron moves up
emission = energy is released; electron moves down
400
How many siblings does Ms. Fig have?
2
500
In a neutral atom, the number of electrons is equal to ___________________.
...the number of protons.
500
Draw an energy level model of an atom of nitrogen. (You can use the image below to help guide you.)
500
Element X has two natural isotopes. The isotope with a mass of 10.012 amu has a relative abundance of 19.91%. The isotope with a mass of 11.009 amu has relative abundance of 80.09%. Calculate the average atomic mass of this element.
10.8104 amu
500
An electron falls from a high energy level to its ground state. Which color of visible light is most likely emitted when this occurs and why?
Violet or purple light is likely emitted because it has the most energy.
500
What relationship do frequency and wavelength have?
indirect