Atoms Flashcards
what are the three types of subatomic particles in an atom
- protons
- neutrons
- electrons
what is found in the nucleus of an atom
- protons
- neutrons
which particles have approximately the same mass
- protons
- neutrons
what is the overall charge of an atom represented on the periodic table
- neutral charge
the number of electrons in a neutral atom is equal to what
the atomic number
how are the electron shells labelled in the Bohr model
K, L, M, N
what is the relationship between atomic number and protons
atomic number is equal to the protons
what is the charge of a proton
positive
what is the charge of a neutron
neutral
what is the charge of a electron
negative
what is the formula to calculate the number of neutrons in an atom
atomic mass - atomic number
what is the role of neutrons in an atom
they add mass and stability to the nucleus
what is the arrangement of electrons in the shells of an atom called
electron configuration