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Proton's charge
positive
Proton's Location
Nucleus
Proton's mass
1 AMU
Electron's mass
< 1 AMU
Electron's Location
Electron Cloud/shell/orbital
Electron's Charge
negative
Neutron's Charge
neutral
Neutron's Location
Nucleus
Neutron's Mass
1 AMU
An element has 36 protons, 36 electrons, and a mass of 84. How many neutrons does it have?
48
The smallest particle of an element is called
Atom
If you know the atomic number, what other two things do you know?
number of protons and number of electrons
If you need to solve for how many neutrons, what do you do?
Mass-Atomic Number
If you want to know how many protons+neutrons an element has, you would look at what on the reference sheet?
Atomic Mass
If an atom has 17 protons, 18 neutrons, and 17 electrons, what is the mass of this atom?
35
What is the overall electrical charge of the nucleus in this atom?
+8
