electron arrangement determines the chemical properties of an atom Flashcards
out of protons/electrons/neutrons, which are only involved in chemical
only electrons are involved in chemical activity
electrons occur in energy levels called what?
electron shells
how many electron shells may an electron have?
an atom may have 1, 2, or 3 electron shells
what determines the chemical properties of the atom?
the number of electrons in the outermost shell
the 1st shell is full wit how many electrons? the second and third can hold up to how many electrons?
1st shell: full with 2 electrons
2nd/3rd shell: 8 electrons
what shells are filled first?
lower shells
atoms whose shells are not full tend to interact with other atoms and do what with the electrons?
what do these interactions do?
tend to interact with other atoms and gain, lose, or share electrons
these interactions form chemical bonds