Atomic Structure (Short Response) Flashcards
Calculated using mass number and atomic number
neutrons
Inferred from atomic number because atoms are neutral
electrons
defined by atomic number
protons
Most difficult particle to locate and why?
Neutrons;
1- Deep in the nucleus
2- 0 charge
The particle that distinguishes one element from another
protons
Term that identifies atoms of the same element with different masses
isotopes
Are neutrons the same number or different in each elements isotopes?
different numbers
What instrument can isolate number of isotopes for an element
Mass Spectrometer
3 Things a Mass Spectrometer can do
1- Show chemical structure
2- Number of isotopes
3- Determine relative abundance
Avogadro’s Number
6.022 x 10^23
Define one mole of an element
chemical unit for an equal number of particles for an element