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Here is answers to Review HW for Atomic Structure - Revised 2022-2023
1a) Democritus
1b) atmos
2)
a) Atoms are the smallest particle of matter (it is indivisible).
- Subatomic particles exist (electron, proton, neutron)
b) Atoms of the same element are identical including mass.
- Isotopes - atoms of same element that are different by mass (# of neutrons)
c) Atoms of different elements are different including mass.
d) Atoms combine to form compounds in a simple whole number ratio