Atomic Flashcards
What is the mass number?
Total number of protons and neutrons
What is the Atomic number?
Is the number of protons in the atom
The atomic number is equal to the number of?
Protons & Electrons
How do you find the neutrons?
Atomic # minus mass #
What is Electronic Configuration?
Is the arrangement of electrons in the shells of the atom.
How do you find the Periods?
Is the number of shells
What type of charge does a
proton have?
+1
What type of charge does a
neutron have?
0
What type of charge does a
electron have?
-1
What type of change does a
proton have?
positive
What type of change does a
neutron have?
neutral
What type of change does a
electron have?
negative
What type of relative mass does a
proton have?
1
What type of relative mass does a
neutron have?
1
What type of relative mass does a
electron have?
1/1840
Which two subatomic particles
are located in the nucleus of an atom?
Protons and neutrons
How many protons are in the nucleus of an atom with an atomic number of 15?
15
How many electrons are in the nucleus of an atom with an atomic number of 20?
0
