Electronic Structure Flashcards
1
Q
what is atomic number
A
number of protons and electrons in a neutral atom of the elemtn
2
Q
what is atomic mass number
A
number of protons and neutrons added together
3
Q
what is the standard atomic weight (relative atomic mass)
A
compares the mass of an elements atoms, taking into account its various isotopes and abundance
4
Q
what are valence electrons
A
electrons in the outermost shell (valence shell)
5
Q
what do valence electrons do
A
determine chemical and physical properties of an element
electrons with same valency elecetrons have similar propertie
6
Q
how do atoms form ions
A
lose or gain electrons to form a stable noble gas configuration called octet rule
the amount of electrons lost (-) and gained (+) is the electrons charge
